{"id":128,"date":"2019-06-15T00:13:20","date_gmt":"2019-06-15T00:13:20","guid":{"rendered":"https:\/\/pressbooks.usnh.edu\/methods\/chapter\/earth\/"},"modified":"2023-03-24T15:03:19","modified_gmt":"2023-03-24T15:03:19","slug":"earth","status":"publish","type":"chapter","link":"https:\/\/pressbooks.usnh.edu\/methods\/chapter\/earth\/","title":{"raw":"Sun, Earth, and the Moon","rendered":"Sun, Earth, and the Moon"},"content":{"raw":"<h2><strong><span style=\"background-color: #ff00ff\">Formative Assessment:<\/span> <a href=\"https:\/\/forms.gle\/JQVF9bQwrioTnGqJA\">Sun, Earth and the Moon<\/a><\/strong><\/h2>\n<strong>Heliocentrism vs Geocentrism<\/strong>\n\nIn early times, humans believed in geocentrism--the theory that Earth is at the center of the solar system, and the Sun and other planets revolve around it. During the Renaissance in the 1500s, Copernicus popularized the concept of heliocentrism--the theory that the Sun is at the center of the universe and Earth orbits the Sun.\n\nThroughout Copernicus\u2019 lifetime, the scientific community widely denied the theory of heliocentrism. A generation later, the Sun-centered theory became more commonly accepted when Galileo invented the telescope in 1609, making it easier to observe space. Additionally, Galileo made a variety of discoveries about our solar system that disproved the geocentric model of the universe. Despite these new discoveries, however, there was still significant pushback against heliocentrism, particularly from the Catholic Church.\n\nAt the time, the Church defended its stance on geocentrism because it believed Galileo\u2019s discoveries left too many questions unanswered and did not explicitly prove heliocentrism. During this period, a case could still <em>technically<\/em> be made for geocentrism until technology advanced enough for scientists to discover more evidence supporting heliocentrism.\n\nAdditionally, the Church had certain clergy who interpreted parts of the Bible very literally, as if it were a science textbook rather than a theological work. Galileo\u2019s claims were scandalous in their eyes because heliocentrism directly conflicted with certain biblical passages. For these reasons, the Church put Galileo on trial, convicted him of heresy, and sentenced him to house arrest for the remainder of his life. In 1822, the Church eventually accepted the theory of heliocentrism once there was enough scientific evidence to claim it as truth.\n<div class=\"textbox textbox--key-takeaways\"><header class=\"textbox__header\">\n<p class=\"textbox__title\">Key Takeaway<\/p>\n\n<\/header>\n<div class=\"textbox__content\">\n\nTo remember the theories of [pb_glossary id=\"247\"]heliocentrism [\/pb_glossary]and [pb_glossary id=\"246\"]geocentrism[\/pb_glossary], break down the names and look at the etymology.\n<ul>\n \t<li>The root <em>geo<\/em>- means \u201cearth\u201d, and <em>centr<\/em>- means \u201ccenter\u201d. So,\u00a0<em>geocentrism<\/em> is the theory in which Earth is at the center of the solar system.<\/li>\n \t<li>The root <em>helio<\/em>- means \u201csun\u201d, and <em>centr<\/em>- means \u201ccenter\u201d. So, heliocentrism is the theory in which the Sun is at the center of the solar system.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<strong>Phases of the Moon<\/strong>\n\nThe Moon orbits around Earth once every 28 days, or about once a month. Depending on where the Moon is in its orbit, it appears different from Earth. However, everyone on Earth sees the same phase of the Moon on the same day.\n<div class=\"textbox textbox--examples\"><header class=\"textbox__header\">\n<p class=\"textbox__title\">The phases of the moon are:<\/p>\n\n<\/header>\n<div class=\"textbox__content\">\n<ul>\n \t<li><strong>New:\u00a0<\/strong>The Moon\u2019s face is not visible from Earth<\/li>\n \t<li><strong>Crescent:<\/strong>\u00a0Between a new moon and a quarter moon<\/li>\n \t<li><strong>Quarter<\/strong><em>:<\/em>\u00a0From Earth, we can see half of the moon\u2019s face which is a quarter of the entire moon<\/li>\n \t<li><strong>Gibbous<\/strong><em>:<\/em>\u00a0Between a quarter moon and a full moon<\/li>\n \t<li><strong>Full<\/strong><em>:<\/em>\u00a0All of the Moon\u2019s face is visible from Earth<\/li>\n<\/ul>\nFor the first half of this cycle, the visible part of the Moon waxes or grows larger. After reaching a full moon, the Moon wanes or grows smaller for the second of the cycle.\n\n<\/div>\n<\/div>\nThe image, below, shows the Moon's phases.\n\n[caption id=\"attachment_126\" align=\"aligncenter\" width=\"1024\"]<img class=\"wp-image-121 size-large\" src=\"http:\/\/pressbooks.usnh.edu\/methods\/wp-content\/blogs.dir\/31\/files\/2019\/06\/6485703751_b21c653a52_o-1024x768-1.jpg\" alt=\"\" width=\"1024\" height=\"768\"> \u201c<a href=\"https:\/\/www.flickr.com\/photos\/pkmonaghan\/6485703751\">Moon Phases from Earth<\/a>\u201d by <a href=\"https:\/\/www.flickr.com\/photos\/pkmonaghan\/\">pmonaghan<\/a> is licensed under <a href=\"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/2.0\/\">CC-By-NC-ND 2.0<\/a>[\/caption]\n\nWhere are the Moon, Sun, and Earth in relation to each other for the different Moon phases?\n\nFor further explanation of the Moon's phases, watch the following video.\n\nhttps:\/\/www.youtube.com\/watch?v=ZQcf9xLABa0\n<h5>Video credit: \"<a href=\"https:\/\/www.youtube.com\/watch?v=ZQcf9xLABa0\">The Moon<\/a>\" by <a href=\"https:\/\/www.youtube.com\/channel\/UC4a-Gbdw7vOaccHmFo40b9g\">Khan Academy<\/a> is licensed under <a href=\"http:\/\/creativecommons.org\/licenses\/by-nc-sa\/3.0\/us\/\">CC BY-NC-SA 3.0<\/a>. Note: All Khan Academy content is available for free at <a href=\"https:\/\/www.khanacademy.org\">khanacademy.org<\/a>.<\/h5>\n<strong>Equinox &amp; Solstice\u00a0<\/strong>\n\nThere are 2 equinoxes and 2 solstices per year - Spring Equinox, Autumn Equinox, Winter Solstice, and Summer Solstice. [pb_glossary id=\"248\"]Equinoxes[\/pb_glossary] (which sounds like the word equal) mark the day in which all of Earth receives an equal amount of sunlight--12 hours. This equal amount of sunlight occurs when the Equator is directly in line with the Sun. The Spring Equinox happens around March 20th and the Autumn Equinox happens around September 23rd each year.\n\n[caption id=\"attachment_126\" align=\"aligncenter\" width=\"300\"]<img class=\"size-medium wp-image-122\" src=\"http:\/\/pressbooks.usnh.edu\/methods\/wp-content\/blogs.dir\/31\/files\/2023\/03\/Earth-lighting-equinox_EN-300x197.png\" alt=\"\" width=\"300\" height=\"197\"> Equinox<br>\u201c<a href=\"https:\/\/commons.wikimedia.org\/wiki\/File:Earth-lighting-equinox_EN.png\">Illumination of Earth by Sun on the day of equinox<\/a>\u201d by <a href=\"https:\/\/commons.wikimedia.org\/wiki\/User:Blueshade\">Przemyslaw \"Blueshade\" Idzkiewicz<\/a> is licensed under <a href=\"https:\/\/creativecommons.org\/licenses\/by-sa\/2.0\/deed.en\">CC BY SA-2.0<\/a>[\/caption]\n\nSolstices mark the days of the year in which a hemisphere receives the least amount of sunlight (aka the shortest day of the year) and the most amount of sunlight (aka the longest day of the year). These days occur when one of the tropic lines are directly in line with the Sun. In the Northern Hemisphere, the [pb_glossary id=\"249\"]Winter Solstice[\/pb_glossary] (the day with the least sunlight, usually around December 21) occurs when the Tropic of Capricorn (the southern tropic line) is in line with the Sun. The [pb_glossary id=\"250\"]Summer Solstice[\/pb_glossary] (the day with the most sunlight, usually around June 21) occurs when the Tropic of Cancer (the northern tropic line) is in line with the Sun.\n\n[caption id=\"attachment_126\" align=\"alignleft\" width=\"300\"]<img class=\"size-medium wp-image-123\" src=\"http:\/\/pressbooks.usnh.edu\/methods\/wp-content\/blogs.dir\/31\/files\/2023\/03\/Earth-lighting-winter-solstice_EN-300x197.png\" alt=\"\" width=\"300\" height=\"197\"> Winter Solstice<br>\"<a href=\"https:\/\/commons.wikimedia.org\/wiki\/File:Earth-lighting-summer-solstice_EN.png\">Illumination of Earth by Sun on the day of summer solstice in the northern hemisphere<\/a>\u201d by <a href=\"https:\/\/commons.wikimedia.org\/wiki\/User:Blueshade\">Przemyslaw \"Blueshade\" Idzkiewicz<\/a> is licensed under <a href=\"https:\/\/creativecommons.org\/licenses\/by-sa\/2.0\/deed.en\">CC BY SA-2.0<\/a>[\/caption]\n\n[caption id=\"attachment_126\" align=\"alignright\" width=\"300\"]<img class=\"size-medium wp-image-124\" src=\"http:\/\/pressbooks.usnh.edu\/methods\/wp-content\/blogs.dir\/31\/files\/2023\/03\/Earth-lighting-summer-solstice_EN-300x197.png\" alt=\"\" width=\"300\" height=\"197\"> Summer Solstice<br>\u201c<a href=\"https:\/\/commons.wikimedia.org\/wiki\/File:Earth-lighting-winter-solstice_EN.png\">Illumination of Earth by Sun on the day of summer solstice in the northern hemisphere<\/a>\u201d by <a href=\"https:\/\/commons.wikimedia.org\/wiki\/User:Blueshade\">Przemyslaw \"Blueshade\" Idzkiewicz<\/a> is licensed under <a href=\"https:\/\/creativecommons.org\/licenses\/by-sa\/2.0\/deed.en\">CC BY SA-2.0<\/a>[\/caption]\n\n&nbsp;\n\n&nbsp;\n\n&nbsp;\n\n&nbsp;\n\n&nbsp;\n\n&nbsp;\n\n&nbsp;\n\n&nbsp;\n\n&nbsp;\n\n<strong>Eclipses<\/strong>\n\nEclipses happen when light is blocked. There are two types of eclipse that we can see on Earth: solar eclipses and lunar eclipses.\n\nTo understand each type of eclipse, you must determine whether the Sun or Moon is being blocked.\n\n<span style=\"color: #000080\"><strong>Solar Eclipse<\/strong><\/span>\n<ul>\n \t<li>In a solar eclipse the Sun is being blocked--this happens when the Moon perfectly crosses between Earth and the Sun. A solar eclipse always occurs during a new moon.<\/li>\n<\/ul>\n[caption id=\"attachment_126\" align=\"aligncenter\" width=\"800\"]<img class=\"wp-image-125 size-full\" src=\"http:\/\/pressbooks.usnh.edu\/methods\/wp-content\/blogs.dir\/31\/files\/2023\/03\/eclipsesHOW-e1561158809163.png\" alt=\"\" width=\"800\" height=\"356\"> Solar Eclipse<br>Image credit: \"<a href=\"https:\/\/eclipse2017.nasa.gov\/how-eclipses-work\">Total Solar Eclipse<\/a>\" by NASA[\/caption]\n\nFor more\u00a0explanation of solar eclipses, watch the video below:\n\nhttps:\/\/www.youtube.com\/watch?time_continue=168&amp;v=Qog18tiNnqg&amp;feature=emb_title\n<h5>Video credit: \"<a href=\"https:\/\/www.youtube.com\/watch?time_continue=168&amp;v=Qog18tiNnqg&amp;feature=emb_title\">What Creates a Total Solar Eclipse?<\/a>\" by Andy Cohen\/<a href=\"https:\/\/ed.ted.com\">TED-Ed<\/a> is licensed under <a href=\"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/\">CC BY-NC-ND 4.0<\/a><\/h5>\n<span style=\"color: #000080\"><strong>Lunar Eclipse<\/strong><\/span>\n<ul>\n \t<li>In a lunar eclipse, the Moon is blocked when it passes through Earth\u2019s shadow. When the Moon is in this position, the Sun's light cannot reach it. A lunar eclipse always occurs during a full moon.<\/li>\n<\/ul>\n<div class=\"mceTemp\"><\/div>\n\n[caption id=\"attachment_126\" align=\"aligncenter\" width=\"1050\"]<img class=\"wp-image-126 size-full\" src=\"http:\/\/pressbooks.usnh.edu\/methods\/wp-content\/blogs.dir\/31\/files\/2023\/03\/16397793464_dfe5ebaef4_o-e1561159300264.png\" alt=\"\" width=\"1050\" height=\"548\"> Lunar Eclipse<br>\u201c<a href=\"https:\/\/www.flickr.com\/photos\/nasamarshall\/16397793464\">Lunar Eclipse<\/a>\u201d by <a href=\"https:\/\/www.flickr.com\/photos\/nasamarshall\/\">NASA\u2019s Marshall Space Flight Center<\/a> is licensed under <a href=\"https:\/\/creativecommons.org\/licenses\/by-nc\/2.0\/\">CC BY-NC 2.0<\/a>[\/caption]\n\nFor more explanation of lunar eclipses, watch the video below:\n\nhttps:\/\/www.youtube.com\/watch?v=wuhNZejHeBg\n<h5 style=\"text-align: left\">Video credit: \"<a href=\"https:\/\/www.youtube.com\/watch?v=wuhNZejHeBg\">Lunar Eclipse Essentials<\/a>\" by <a href=\"https:\/\/www.youtube.com\/channel\/UCAY-SMFNfynqz1bdoaV8BeQ\">NASA<\/a> is public domain<\/h5>\n<div>\n\n<strong>Seasons<\/strong>\n\nEarth orbits in the same plane as the other planets in our solar system: the [pb_glossary id=\"264\"]Plane of the Ecliptic[\/pb_glossary]. However, Earth's is also tilted on it axis. This tilt never changes in relation to space, so different areas of Earth are tilted toward the Sun at different times of year. This is why we have seasons.\n<ul>\n \t<li>If a hemisphere is tilted towards the Sun it gets more sunlight and it warms up--aka summer.<\/li>\n \t<li>If a hemisphere is tilted away from the Sun it gets less sunlight and it cools down--aka winter.<\/li>\n<\/ul>\nAdditionally, the Northern and Southern Hemispheres have opposite seasons due to the tilt of Earth's axis. When the Northern Hemisphere is tilted towards the Sun it is summer (this is winter in the Southern Hemisphere). When the Southern Hemisphere is tilted towards the Sun it is summer (this is winter in the Northern Hemisphere).\n\nEarth's seasons are explained in the image below.\n\n[caption id=\"attachment_127\" align=\"aligncenter\" width=\"500\"]<img class=\"wp-image-127 size-full\" src=\"http:\/\/pressbooks.usnh.edu\/methods\/wp-content\/blogs.dir\/31\/files\/2023\/03\/seasons.en_.jpg\" alt=\"\" width=\"500\" height=\"647\"> Image credit: <a href=\"https:\/\/spaceplace.nasa.gov\/seasons\/en\/\">Seasons<\/a> by <a href=\"https:\/\/spaceplace.nasa.gov\">NASA Space Place<\/a>\u00a0is public domain[\/caption]\n\n<strong>Shadows<\/strong>\n<div class=\"textbox textbox--examples\"><header class=\"textbox__header\">\n<h3 class=\"textbox__title\"><span style=\"color: #ffffff\">Watch the video, below, to learn more about the tropic lines and Earth's shadows. The following practice questions will be explained in the video:<\/span><\/h3>\n<\/header>\n<div class=\"textbox__content\">\n<ol>\n \t<li>It is the [pb_glossary id=\"250\"]Summer Solstice[\/pb_glossary] in the Southern Hemisphere and you are standing on the Tropic of Capricorn. It is noon, so the Sun is directly above you. Which direction does your shadow point?<\/li>\n \t<li>If you are in Iowa, what will happen to the length of your shadow as we approach the Spring [pb_glossary id=\"248\"]Equinox[\/pb_glossary]?<\/li>\n<\/ol>\n[embed]https:\/\/youtu.be\/4WNZvBrNr6g[\/embed]\n\n<\/div>\n<\/div>\n<\/div>\n<div class=\"textbox textbox--key-takeaways\"><header class=\"textbox__header\">\n<p class=\"textbox__title\">Key Takeaways<\/p>\n\n<\/header>\n<div class=\"textbox__content\">\n<ul>\n \t<li>As Earth orbits around the Sun, different areas receive direct or indirect sunlight due to the tilt of Earth on its axis. This is what causes seasons.<\/li>\n \t<li>Earth's distance away from the Sun does not cause the seasons.<\/li>\n \t<li>The tropic lines, equator, arctic circle all mark areas of specific direct sunlight.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<div class=\"textbox textbox--exercises\"><header class=\"textbox__header\"><span style=\"text-align: initial;font-size: 1em;background-color: #0b6396\">Next Generation Science Standards: <\/span><span style=\"text-align: initial;background-color: #ffffff;color: #333333;font-size: 1em;font-style: normal\">NGSS<\/span><\/header><\/div>\n<div class=\"textbox textbox--exercises\"><\/div>\n<span style=\"text-decoration: underline\"><strong>Performance Expectations<\/strong><\/span>\n<table>\n<tbody>\n<tr>\n<th style=\"width: 57.1719px\">1-ESS1-1<\/th>\n<td style=\"width: 745.953px\">Use observations of the sun, moon, and stars to describe patterns that can be\npredicted.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table>\n<tbody>\n<tr>\n<th style=\"width: 57.1719px\">1-ESS1-2.<\/th>\n<td style=\"width: 745.953px\"><span class=\"popup\" style=\"cursor: pointer\" title=\"\" data-original-title=\"<h4>Planning and Carrying Out Investigations<\/h4><p>Planning and carrying out investigations to answer questions or test solutions to problems in K\u20132 builds on prior experiences and progresses to simple investigations, based on fair tests, which provide data to support explanations or design solutions.<\/p><ul><li>Make observations (firsthand or from media) to collect data that can be used to make comparisons.<\/li><\/ul>\">Make observations<\/span>\u00a0<span class=\"popup\" style=\"cursor: pointer\" title=\"\" data-original-title=\"<h4>ESS1.B: Earth and the Solar System<\/h4><ul><li>Seasonal patterns of sunrise and sunset can be observed, described, and predicted.<\/li><\/ul>\">at different times of year<\/span>\u00a0<span class=\"popup\" style=\"cursor: pointer\" title=\"\" data-original-title=\"<h4>Patterns<\/h4><ul><li>Patterns in the natural world can be observed, used to describe phenomena, and used as evidence.<\/il><\/ul>\">to relate<\/span>\u00a0<span class=\"popup\" style=\"cursor: pointer\" title=\"\" data-original-title=\"<h4>ESS1.B: Earth and the Solar System<\/h4><ul><li>Seasonal patterns of sunrise and sunset can be observed, described, and predicted.<\/li><\/ul>\">the amount of daylight to the time of year.<\/span>\u00a0<span class=\"red\">[Clarification Statement: Emphasis is on relative comparisons of the amount of daylight in the winter to the amount in the spring or fall.] [<em>Assessment Boundary: Assessment is limited to relative amounts of daylight, not quantifying the hours or time of daylight.<\/em>]<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table>\n<tbody>\n<tr>\n<th>5-ESS1-2.<\/th>\n<td><span class=\"popup\" style=\"cursor: pointer\" title=\"\" data-original-title=\"<h4>Analyzing and Interpreting Data<\/h4><p>Analyzing data in 3\u20135 builds on K\u20132 experiences and progresses to introducing quantitative approaches to collecting data and conducting multiple trials of qualitative observations. When possible and feasible, digital tools should be used.<\/p><ul><li>Represent data in graphical displays (bar graphs, pictographs and\/or pie charts) to reveal patterns that indicate relationships.\">Represent data in graphical displays to reveal<\/span>\u00a0<span class=\"popup\" style=\"cursor: pointer\" title=\"\" data-original-title=\"<h4>Patterns<\/h4><ul><li>Similarities and differences in patterns can be used to sort, classify, communicate and analyze simple rates of change for natural phenomena.\">patterns of<\/span>\u00a0<span class=\"popup\" style=\"cursor: pointer\" title=\"\" data-original-title=\"<h4>ESS1.B: Earth and the Solar System<\/h4><ul><li>The orbits of Earth around the sun and of the moon around Earth, together with the rotation of Earth about an axis between its North and South poles, cause observable patterns. These include day and night; daily changes in the length and direction of shadows; and different positions of the sun, moon, and stars at different times of the day, month, and year. (5-ESS1-2)<\/ul>\">daily changes in length and direction of shadows, day and night, and the seasonal appearance of some stars in the night sky.<\/span>\u00a0<span class=\"red\">[Clarification Statement: Examples of patterns could include the position and motion of Earth with respect to the sun and selected stars that are visible only in particular months.] [<em>Assessment Boundary: Assessment does not include causes of seasons.<\/em>]<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table>\n<tbody>\n<tr>\n<th>MS-ESS1-1.<\/th>\n<td><span class=\"popup\" style=\"cursor: pointer\" title=\"\" data-original-title=\"<h4>Developing and Using Models<\/h4><p>Modeling in 6\u20138 builds on K\u20135 experiences and progresses to developing, using, and revising models to describe, test, and predict more abstract phenomena and design systems.<\/p><ul><li>Develop and use a model to describe phenomena.<\/li><\/ul>\">Develop and use a model<\/span>\u00a0<span class=\"popup\" style=\"cursor: pointer\" title=\"\" data-original-title=\"<h4>ESS1.A: The Universe and Its Stars<\/h4><ul><li>Patterns of the apparent motion of the sun, the moon, and stars in the sky can be observed, described, predicted, and explained with models.<\/li><\/ul><h4>ESS1.B: Earth and the Solar System<\/h4><p><\/p><ul><li>This model of the solar system can explain eclipses of the sun and the moon. Earth\u2019s spin axis is fixed in direction over the short-term but tilted relative to its orbit around the sun. The seasons are a result of that tilt and are caused by the differential intensity of sunlight on different areas of Earth across the year.<\/ul><\/li>\">of the Earth-sun-moon system<\/span>\u00a0<span class=\"popup\" style=\"cursor: pointer\" title=\"\" data-original-title=\"<h4>Developing and Using Models<\/h4><p>Modeling in 6\u20138 builds on K\u20135 experiences and progresses to developing, using, and revising models to describe, test, and predict more abstract phenomena and design systems.<\/p><ul><li>Develop and use a model to describe phenomena.<\/li><\/ul>\">to describe<\/span>\u00a0<span class=\"popup\" style=\"cursor: pointer\" title=\"\" data-original-title=\"<h4>Patterns <\/h4><p><\/p><p><\/p><ul><li>Patterns can be used to identify cause-and-effect relationships.<\/li><\/ul>\">the cyclic patterns of<\/span>\u00a0<span class=\"popup\" style=\"cursor: pointer\" title=\"\" data-original-title=\"<h4>ESS1.A: The Universe and Its Stars<\/h4><ul><li>Patterns of the apparent motion of the sun, the moon, and stars in the sky can be observed, described, predicted, and explained with models.<\/li><\/ul><h4>ESS1.B: Earth and the Solar System<\/h4><p><\/p><ul><li>This model of the solar system can explain eclipses of the sun and the moon. Earth\u2019s spin axis is fixed in direction over the short-term but tilted relative to its orbit around the sun. The seasons are a result of that tilt and are caused by the differential intensity of sunlight on different areas of Earth across the year.<\/ul><\/li>\">lunar phases, eclipses of the sun and moon, and seasons.<\/span>\u00a0\u00a0<span class=\"red\">[Clarification Statement: Examples of models can be physical, graphical, or conceptual.]<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<span style=\"text-decoration: underline\"><strong>Disciplinary Core Ideas: DCI<\/strong><\/span>\n\nFirst grade: <a href=\"http:\/\/www.nap.edu\/openbook.php?record_id=13165&amp;page=175\">ESS1.B: Earth and the Solar System<\/a>\n<ul>\n \t<li><a href=\"http:\/\/www.nap.edu\/openbook.php?record_id=13165&amp;page=175\">Seasonal patterns of sunrise and sunset can be observed, described, and predicted. (1-ESS1-2)<\/a><\/li>\n<\/ul>\nFifth grade: <a href=\"http:\/\/www.nap.edu\/openbook.php?record_id=13165&amp;page=175\">ESS1.B: Earth and the Solar System<\/a>\n<ul>\n \t<li><a href=\"http:\/\/www.nap.edu\/openbook.php?record_id=13165&amp;page=175\">The orbits of Earth around the sun and of the moon around Earth, together with the rotation of Earth about an axis between its North and South poles, cause observable patterns. These include day and night; daily changes in the length and direction of shadows; and different positions of the sun, moon, and stars at different times of the day, month, and year. (5-ESS1-2)<\/a><\/li>\n<\/ul>\nMiddle School\n\n<a href=\"http:\/\/www.nap.edu\/openbook.php?record_id=13165&amp;page=175\">This model of the solar system can explain eclipses of the sun and the moon. Earth\u2019s spin axis is fixed in direction over the short-term but tilted relative to its orbit around the sun. The seasons are a result of that tilt and are caused by the differential intensity of sunlight on different areas of Earth across the year. (MS-ESS1-1)<\/a>\n\n<span style=\"text-decoration: underline\"><strong>Crosscutting Concepts: CCC<\/strong><\/span>\n\nFirst grade: <a href=\"http:\/\/www.nap.edu\/openbook.php?record_id=13165&amp;page=85\">Patterns<\/a>\n<ul>\n \t<li><a href=\"http:\/\/www.nap.edu\/openbook.php?record_id=13165&amp;page=85\">Patterns in the natural world can be observed, used to describe phenomena, and used as evidence. (1-ESS1-1),(1-ESS1-2)<\/a><\/li>\n<\/ul>\n-\u00a0-\u00a0-\u00a0-\u00a0-\u00a0-\u00a0-\u00a0-\u00a0-\u00a0-\u00a0-\u00a0-\u00a0-\u00a0-\u00a0-\u00a0-\u00a0-\u00a0-\u00a0-\u00a0-\u00a0-\u00a0-\u00a0-\u00a0-\u00a0-\u00a0-\u00a0-\u00a0-\u00a0-\u00a0-\u00a0-\u00a0-\u00a0-\u00a0-\u00a0-\u00a0-\n<h3><span style=\"text-decoration: underline\"><strong><em>Connections to Nature of Science<\/em><\/strong><\/span><\/h3>\n<h3>Scientific Knowledge Assumes an Order and Consistency in Natural Systems<\/h3>\n<ul>\n \t<li>Science assumes natural events happen today as they happened in the past. (1-ESS1-1)<\/li>\n \t<li>Many events are repeated. (1-ESS1-1)<\/li>\n<\/ul>\n<h3><a href=\"http:\/\/www.nap.edu\/openbook.php?record_id=13165&amp;page=85\">Patterns<\/a><\/h3>\n<ul>\n \t<li><a href=\"http:\/\/www.nap.edu\/openbook.php?record_id=13165&amp;page=85\">Similarities and differences in patterns can be used to sort, classify, communicate and analyze simple rates of change for natural phenomena. (5-ESS1-2)<\/a><\/li>\n<\/ul>\n<h3><a href=\"http:\/\/www.nap.edu\/openbook.php?record_id=13165&amp;page=87\">Cause and Effect<\/a><\/h3>\n<ul>\n \t<li><a href=\"http:\/\/www.nap.edu\/openbook.php?record_id=13165&amp;page=87\">Cause and effect relationships are routinely identified and used to explain change. (5-PS2-1)<\/a><\/li>\n<\/ul>\n<h3><a href=\"http:\/\/www.nap.edu\/openbook.php?record_id=13165&amp;page=91\">Systems and System Models<\/a><\/h3>\n<ul>\n \t<li><a href=\"http:\/\/www.nap.edu\/openbook.php?record_id=13165&amp;page=91\">Models can be used to represent systems and their interactions. (MS-ESS1-2)<\/a><\/li>\n<\/ul>\n<h1><span style=\"text-decoration: underline\"><strong>Lesson ideas:<\/strong><\/span><\/h1>\n<ol>\n \t<li>Create a daily journal of sky observations: where the Sun is, what time sun rise and sun set, Moon position. Can be part of daily calendaring. Compare to seasons.<\/li>\n \t<li>Play with shadows outside and inside: shadow tag, tracing shadows with sidewalk chalk and seeing how they move throughout the day; compare shadows to where the Sun is. Play with shadows inside: shine flashlights on sticks indoors, have kids move the flashlight up and down to see how the lenght of shadow moves. Draw the shadow and write where the flashlight was.<\/li>\n \t<li>Experiment with Sun\/Moon\/Earth system as we did in class to understand equinoxes, solistices, eclipses, seasons, etc.<\/li>\n<\/ol>\n&nbsp;","rendered":"<h2><strong><span style=\"background-color: #ff00ff\">Formative Assessment:<\/span> <a href=\"https:\/\/forms.gle\/JQVF9bQwrioTnGqJA\">Sun, Earth and the Moon<\/a><\/strong><\/h2>\n<p><strong>Heliocentrism vs Geocentrism<\/strong><\/p>\n<p>In early times, humans believed in geocentrism&#8211;the theory that Earth is at the center of the solar system, and the Sun and other planets revolve around it. During the Renaissance in the 1500s, Copernicus popularized the concept of heliocentrism&#8211;the theory that the Sun is at the center of the universe and Earth orbits the Sun.<\/p>\n<p>Throughout Copernicus\u2019 lifetime, the scientific community widely denied the theory of heliocentrism. A generation later, the Sun-centered theory became more commonly accepted when Galileo invented the telescope in 1609, making it easier to observe space. Additionally, Galileo made a variety of discoveries about our solar system that disproved the geocentric model of the universe. Despite these new discoveries, however, there was still significant pushback against heliocentrism, particularly from the Catholic Church.<\/p>\n<p>At the time, the Church defended its stance on geocentrism because it believed Galileo\u2019s discoveries left too many questions unanswered and did not explicitly prove heliocentrism. During this period, a case could still <em>technically<\/em> be made for geocentrism until technology advanced enough for scientists to discover more evidence supporting heliocentrism.<\/p>\n<p>Additionally, the Church had certain clergy who interpreted parts of the Bible very literally, as if it were a science textbook rather than a theological work. Galileo\u2019s claims were scandalous in their eyes because heliocentrism directly conflicted with certain biblical passages. For these reasons, the Church put Galileo on trial, convicted him of heresy, and sentenced him to house arrest for the remainder of his life. In 1822, the Church eventually accepted the theory of heliocentrism once there was enough scientific evidence to claim it as truth.<\/p>\n<div class=\"textbox textbox--key-takeaways\">\n<header class=\"textbox__header\">\n<p class=\"textbox__title\">Key Takeaway<\/p>\n<\/header>\n<div class=\"textbox__content\">\n<p>To remember the theories of <a class=\"glossary-term\" aria-haspopup=\"dialog\" aria-describedby=\"definition\" href=\"#term_128_247\">heliocentrism <\/a>and <a class=\"glossary-term\" aria-haspopup=\"dialog\" aria-describedby=\"definition\" href=\"#term_128_246\">geocentrism<\/a>, break down the names and look at the etymology.<\/p>\n<ul>\n<li>The root <em>geo<\/em>&#8211; means \u201cearth\u201d, and <em>centr<\/em>&#8211; means \u201ccenter\u201d. So,\u00a0<em>geocentrism<\/em> is the theory in which Earth is at the center of the solar system.<\/li>\n<li>The root <em>helio<\/em>&#8211; means \u201csun\u201d, and <em>centr<\/em>&#8211; means \u201ccenter\u201d. So, heliocentrism is the theory in which the Sun is at the center of the solar system.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<p><strong>Phases of the Moon<\/strong><\/p>\n<p>The Moon orbits around Earth once every 28 days, or about once a month. Depending on where the Moon is in its orbit, it appears different from Earth. However, everyone on Earth sees the same phase of the Moon on the same day.<\/p>\n<div class=\"textbox textbox--examples\">\n<header class=\"textbox__header\">\n<p class=\"textbox__title\">The phases of the moon are:<\/p>\n<\/header>\n<div class=\"textbox__content\">\n<ul>\n<li><strong>New:\u00a0<\/strong>The Moon\u2019s face is not visible from Earth<\/li>\n<li><strong>Crescent:<\/strong>\u00a0Between a new moon and a quarter moon<\/li>\n<li><strong>Quarter<\/strong><em>:<\/em>\u00a0From Earth, we can see half of the moon\u2019s face which is a quarter of the entire moon<\/li>\n<li><strong>Gibbous<\/strong><em>:<\/em>\u00a0Between a quarter moon and a full moon<\/li>\n<li><strong>Full<\/strong><em>:<\/em>\u00a0All of the Moon\u2019s face is visible from Earth<\/li>\n<\/ul>\n<p>For the first half of this cycle, the visible part of the Moon waxes or grows larger. After reaching a full moon, the Moon wanes or grows smaller for the second of the cycle.<\/p>\n<\/div>\n<\/div>\n<p>The image, below, shows the Moon&#8217;s phases.<\/p>\n<figure id=\"attachment_126\" aria-describedby=\"caption-attachment-126\" style=\"width: 1024px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-121 size-large\" src=\"http:\/\/pressbooks.usnh.edu\/methods\/wp-content\/blogs.dir\/31\/files\/2019\/06\/6485703751_b21c653a52_o-1024x768-1.jpg\" alt=\"\" width=\"1024\" height=\"768\" srcset=\"https:\/\/pressbooks.usnh.edu\/methods\/files\/2019\/06\/6485703751_b21c653a52_o-1024x768-1.jpg 1024w, https:\/\/pressbooks.usnh.edu\/methods\/files\/2019\/06\/6485703751_b21c653a52_o-1024x768-1-300x225.jpg 300w, https:\/\/pressbooks.usnh.edu\/methods\/files\/2019\/06\/6485703751_b21c653a52_o-1024x768-1-768x576.jpg 768w, https:\/\/pressbooks.usnh.edu\/methods\/files\/2019\/06\/6485703751_b21c653a52_o-1024x768-1-65x49.jpg 65w, https:\/\/pressbooks.usnh.edu\/methods\/files\/2019\/06\/6485703751_b21c653a52_o-1024x768-1-225x169.jpg 225w, https:\/\/pressbooks.usnh.edu\/methods\/files\/2019\/06\/6485703751_b21c653a52_o-1024x768-1-350x263.jpg 350w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption id=\"caption-attachment-126\" class=\"wp-caption-text\">\u201c<a href=\"https:\/\/www.flickr.com\/photos\/pkmonaghan\/6485703751\">Moon Phases from Earth<\/a>\u201d by <a href=\"https:\/\/www.flickr.com\/photos\/pkmonaghan\/\">pmonaghan<\/a> is licensed under <a href=\"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/2.0\/\">CC-By-NC-ND 2.0<\/a><\/figcaption><\/figure>\n<p>Where are the Moon, Sun, and Earth in relation to each other for the different Moon phases?<\/p>\n<p>For further explanation of the Moon&#8217;s phases, watch the following video.<\/p>\n<p><iframe loading=\"lazy\" id=\"oembed-2\" title=\"The Moon\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/ZQcf9xLABa0?feature=oembed&#38;rel=0\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<h5>Video credit: &#8220;<a href=\"https:\/\/www.youtube.com\/watch?v=ZQcf9xLABa0\">The Moon<\/a>&#8221; by <a href=\"https:\/\/www.youtube.com\/channel\/UC4a-Gbdw7vOaccHmFo40b9g\">Khan Academy<\/a> is licensed under <a href=\"http:\/\/creativecommons.org\/licenses\/by-nc-sa\/3.0\/us\/\">CC BY-NC-SA 3.0<\/a>. Note: All Khan Academy content is available for free at <a href=\"https:\/\/www.khanacademy.org\">khanacademy.org<\/a>.<\/h5>\n<p><strong>Equinox &amp; Solstice\u00a0<\/strong><\/p>\n<p>There are 2 equinoxes and 2 solstices per year &#8211; Spring Equinox, Autumn Equinox, Winter Solstice, and Summer Solstice. <a class=\"glossary-term\" aria-haspopup=\"dialog\" aria-describedby=\"definition\" href=\"#term_128_248\">Equinoxes<\/a> (which sounds like the word equal) mark the day in which all of Earth receives an equal amount of sunlight&#8211;12 hours. This equal amount of sunlight occurs when the Equator is directly in line with the Sun. The Spring Equinox happens around March 20th and the Autumn Equinox happens around September 23rd each year.<\/p>\n<figure id=\"attachment_126\" aria-describedby=\"caption-attachment-126\" style=\"width: 300px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-122\" src=\"http:\/\/pressbooks.usnh.edu\/methods\/wp-content\/blogs.dir\/31\/files\/2023\/03\/Earth-lighting-equinox_EN-300x197.png\" alt=\"\" width=\"300\" height=\"197\" srcset=\"https:\/\/pressbooks.usnh.edu\/methods\/files\/2023\/03\/Earth-lighting-equinox_EN-300x197.png 300w, https:\/\/pressbooks.usnh.edu\/methods\/files\/2023\/03\/Earth-lighting-equinox_EN-1024x672.png 1024w, https:\/\/pressbooks.usnh.edu\/methods\/files\/2023\/03\/Earth-lighting-equinox_EN-768x504.png 768w, https:\/\/pressbooks.usnh.edu\/methods\/files\/2023\/03\/Earth-lighting-equinox_EN-1536x1008.png 1536w, https:\/\/pressbooks.usnh.edu\/methods\/files\/2023\/03\/Earth-lighting-equinox_EN-65x43.png 65w, https:\/\/pressbooks.usnh.edu\/methods\/files\/2023\/03\/Earth-lighting-equinox_EN-225x148.png 225w, https:\/\/pressbooks.usnh.edu\/methods\/files\/2023\/03\/Earth-lighting-equinox_EN-350x230.png 350w, https:\/\/pressbooks.usnh.edu\/methods\/files\/2023\/03\/Earth-lighting-equinox_EN.png 1560w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><figcaption id=\"caption-attachment-126\" class=\"wp-caption-text\">Equinox<br \/>\u201c<a href=\"https:\/\/commons.wikimedia.org\/wiki\/File:Earth-lighting-equinox_EN.png\">Illumination of Earth by Sun on the day of equinox<\/a>\u201d by <a href=\"https:\/\/commons.wikimedia.org\/wiki\/User:Blueshade\">Przemyslaw &#8220;Blueshade&#8221; Idzkiewicz<\/a> is licensed under <a href=\"https:\/\/creativecommons.org\/licenses\/by-sa\/2.0\/deed.en\">CC BY SA-2.0<\/a><\/figcaption><\/figure>\n<p>Solstices mark the days of the year in which a hemisphere receives the least amount of sunlight (aka the shortest day of the year) and the most amount of sunlight (aka the longest day of the year). These days occur when one of the tropic lines are directly in line with the Sun. In the Northern Hemisphere, the <a class=\"glossary-term\" aria-haspopup=\"dialog\" aria-describedby=\"definition\" href=\"#term_128_249\">Winter Solstice<\/a> (the day with the least sunlight, usually around December 21) occurs when the Tropic of Capricorn (the southern tropic line) is in line with the Sun. The <a class=\"glossary-term\" aria-haspopup=\"dialog\" aria-describedby=\"definition\" href=\"#term_128_250\">Summer Solstice<\/a> (the day with the most sunlight, usually around June 21) occurs when the Tropic of Cancer (the northern tropic line) is in line with the Sun.<\/p>\n<figure id=\"attachment_126\" aria-describedby=\"caption-attachment-126\" style=\"width: 300px\" class=\"wp-caption alignleft\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-123\" src=\"http:\/\/pressbooks.usnh.edu\/methods\/wp-content\/blogs.dir\/31\/files\/2023\/03\/Earth-lighting-winter-solstice_EN-300x197.png\" alt=\"\" width=\"300\" height=\"197\" srcset=\"https:\/\/pressbooks.usnh.edu\/methods\/files\/2023\/03\/Earth-lighting-winter-solstice_EN-300x197.png 300w, https:\/\/pressbooks.usnh.edu\/methods\/files\/2023\/03\/Earth-lighting-winter-solstice_EN-1024x672.png 1024w, https:\/\/pressbooks.usnh.edu\/methods\/files\/2023\/03\/Earth-lighting-winter-solstice_EN-768x504.png 768w, https:\/\/pressbooks.usnh.edu\/methods\/files\/2023\/03\/Earth-lighting-winter-solstice_EN-1536x1008.png 1536w, https:\/\/pressbooks.usnh.edu\/methods\/files\/2023\/03\/Earth-lighting-winter-solstice_EN-65x43.png 65w, https:\/\/pressbooks.usnh.edu\/methods\/files\/2023\/03\/Earth-lighting-winter-solstice_EN-225x148.png 225w, https:\/\/pressbooks.usnh.edu\/methods\/files\/2023\/03\/Earth-lighting-winter-solstice_EN-350x230.png 350w, https:\/\/pressbooks.usnh.edu\/methods\/files\/2023\/03\/Earth-lighting-winter-solstice_EN.png 1560w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><figcaption id=\"caption-attachment-126\" class=\"wp-caption-text\">Winter Solstice<br \/>&#8220;<a href=\"https:\/\/commons.wikimedia.org\/wiki\/File:Earth-lighting-summer-solstice_EN.png\">Illumination of Earth by Sun on the day of summer solstice in the northern hemisphere<\/a>\u201d by <a href=\"https:\/\/commons.wikimedia.org\/wiki\/User:Blueshade\">Przemyslaw &#8220;Blueshade&#8221; Idzkiewicz<\/a> is licensed under <a href=\"https:\/\/creativecommons.org\/licenses\/by-sa\/2.0\/deed.en\">CC BY SA-2.0<\/a><\/figcaption><\/figure>\n<figure id=\"attachment_126\" aria-describedby=\"caption-attachment-126\" style=\"width: 300px\" class=\"wp-caption alignright\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-124\" src=\"http:\/\/pressbooks.usnh.edu\/methods\/wp-content\/blogs.dir\/31\/files\/2023\/03\/Earth-lighting-summer-solstice_EN-300x197.png\" alt=\"\" width=\"300\" height=\"197\" srcset=\"https:\/\/pressbooks.usnh.edu\/methods\/files\/2023\/03\/Earth-lighting-summer-solstice_EN-300x197.png 300w, https:\/\/pressbooks.usnh.edu\/methods\/files\/2023\/03\/Earth-lighting-summer-solstice_EN-1024x672.png 1024w, https:\/\/pressbooks.usnh.edu\/methods\/files\/2023\/03\/Earth-lighting-summer-solstice_EN-768x504.png 768w, https:\/\/pressbooks.usnh.edu\/methods\/files\/2023\/03\/Earth-lighting-summer-solstice_EN-1536x1008.png 1536w, https:\/\/pressbooks.usnh.edu\/methods\/files\/2023\/03\/Earth-lighting-summer-solstice_EN-65x43.png 65w, https:\/\/pressbooks.usnh.edu\/methods\/files\/2023\/03\/Earth-lighting-summer-solstice_EN-225x148.png 225w, https:\/\/pressbooks.usnh.edu\/methods\/files\/2023\/03\/Earth-lighting-summer-solstice_EN-350x230.png 350w, https:\/\/pressbooks.usnh.edu\/methods\/files\/2023\/03\/Earth-lighting-summer-solstice_EN.png 1560w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><figcaption id=\"caption-attachment-126\" class=\"wp-caption-text\">Summer Solstice<br \/>\u201c<a href=\"https:\/\/commons.wikimedia.org\/wiki\/File:Earth-lighting-winter-solstice_EN.png\">Illumination of Earth by Sun on the day of summer solstice in the northern hemisphere<\/a>\u201d by <a href=\"https:\/\/commons.wikimedia.org\/wiki\/User:Blueshade\">Przemyslaw &#8220;Blueshade&#8221; Idzkiewicz<\/a> is licensed under <a href=\"https:\/\/creativecommons.org\/licenses\/by-sa\/2.0\/deed.en\">CC BY SA-2.0<\/a><\/figcaption><\/figure>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><strong>Eclipses<\/strong><\/p>\n<p>Eclipses happen when light is blocked. There are two types of eclipse that we can see on Earth: solar eclipses and lunar eclipses.<\/p>\n<p>To understand each type of eclipse, you must determine whether the Sun or Moon is being blocked.<\/p>\n<p><span style=\"color: #000080\"><strong>Solar Eclipse<\/strong><\/span><\/p>\n<ul>\n<li>In a solar eclipse the Sun is being blocked&#8211;this happens when the Moon perfectly crosses between Earth and the Sun. A solar eclipse always occurs during a new moon.<\/li>\n<\/ul>\n<figure id=\"attachment_126\" aria-describedby=\"caption-attachment-126\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-125 size-full\" src=\"http:\/\/pressbooks.usnh.edu\/methods\/wp-content\/blogs.dir\/31\/files\/2023\/03\/eclipsesHOW-e1561158809163.png\" alt=\"\" width=\"800\" height=\"356\" srcset=\"https:\/\/pressbooks.usnh.edu\/methods\/files\/2023\/03\/eclipsesHOW-e1561158809163.png 800w, https:\/\/pressbooks.usnh.edu\/methods\/files\/2023\/03\/eclipsesHOW-e1561158809163-300x134.png 300w, https:\/\/pressbooks.usnh.edu\/methods\/files\/2023\/03\/eclipsesHOW-e1561158809163-768x342.png 768w, https:\/\/pressbooks.usnh.edu\/methods\/files\/2023\/03\/eclipsesHOW-e1561158809163-65x29.png 65w, https:\/\/pressbooks.usnh.edu\/methods\/files\/2023\/03\/eclipsesHOW-e1561158809163-225x100.png 225w, https:\/\/pressbooks.usnh.edu\/methods\/files\/2023\/03\/eclipsesHOW-e1561158809163-350x156.png 350w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-126\" class=\"wp-caption-text\">Solar Eclipse<br \/>Image credit: &#8220;<a href=\"https:\/\/eclipse2017.nasa.gov\/how-eclipses-work\">Total Solar Eclipse<\/a>&#8221; by NASA<\/figcaption><\/figure>\n<p>For more\u00a0explanation of solar eclipses, watch the video below:<\/p>\n<p><iframe loading=\"lazy\" id=\"oembed-3\" title=\"What creates a total solar eclipse? - Andy Cohen\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/Qog18tiNnqg?start=168&#38;feature=oembed\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<h5>Video credit: &#8220;<a href=\"https:\/\/www.youtube.com\/watch?time_continue=168&amp;v=Qog18tiNnqg&amp;feature=emb_title\">What Creates a Total Solar Eclipse?<\/a>&#8221; by Andy Cohen\/<a href=\"https:\/\/ed.ted.com\">TED-Ed<\/a> is licensed under <a href=\"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/\">CC BY-NC-ND 4.0<\/a><\/h5>\n<p><span style=\"color: #000080\"><strong>Lunar Eclipse<\/strong><\/span><\/p>\n<ul>\n<li>In a lunar eclipse, the Moon is blocked when it passes through Earth\u2019s shadow. When the Moon is in this position, the Sun&#8217;s light cannot reach it. A lunar eclipse always occurs during a full moon.<\/li>\n<\/ul>\n<div class=\"mceTemp\"><\/div>\n<figure id=\"attachment_126\" aria-describedby=\"caption-attachment-126\" style=\"width: 1050px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-126 size-full\" src=\"http:\/\/pressbooks.usnh.edu\/methods\/wp-content\/blogs.dir\/31\/files\/2023\/03\/16397793464_dfe5ebaef4_o-e1561159300264.png\" alt=\"\" width=\"1050\" height=\"548\" srcset=\"https:\/\/pressbooks.usnh.edu\/methods\/files\/2023\/03\/16397793464_dfe5ebaef4_o-e1561159300264.png 1050w, https:\/\/pressbooks.usnh.edu\/methods\/files\/2023\/03\/16397793464_dfe5ebaef4_o-e1561159300264-300x157.png 300w, https:\/\/pressbooks.usnh.edu\/methods\/files\/2023\/03\/16397793464_dfe5ebaef4_o-e1561159300264-1024x534.png 1024w, https:\/\/pressbooks.usnh.edu\/methods\/files\/2023\/03\/16397793464_dfe5ebaef4_o-e1561159300264-768x401.png 768w, https:\/\/pressbooks.usnh.edu\/methods\/files\/2023\/03\/16397793464_dfe5ebaef4_o-e1561159300264-65x34.png 65w, https:\/\/pressbooks.usnh.edu\/methods\/files\/2023\/03\/16397793464_dfe5ebaef4_o-e1561159300264-225x117.png 225w, https:\/\/pressbooks.usnh.edu\/methods\/files\/2023\/03\/16397793464_dfe5ebaef4_o-e1561159300264-350x183.png 350w\" sizes=\"auto, (max-width: 1050px) 100vw, 1050px\" \/><figcaption id=\"caption-attachment-126\" class=\"wp-caption-text\">Lunar Eclipse<br \/>\u201c<a href=\"https:\/\/www.flickr.com\/photos\/nasamarshall\/16397793464\">Lunar Eclipse<\/a>\u201d by <a href=\"https:\/\/www.flickr.com\/photos\/nasamarshall\/\">NASA\u2019s Marshall Space Flight Center<\/a> is licensed under <a href=\"https:\/\/creativecommons.org\/licenses\/by-nc\/2.0\/\">CC BY-NC 2.0<\/a><\/figcaption><\/figure>\n<p>For more explanation of lunar eclipses, watch the video below:<\/p>\n<p><iframe loading=\"lazy\" id=\"oembed-4\" title=\"NASA | Lunar Eclipse Essentials\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/wuhNZejHeBg?feature=oembed&#38;rel=0\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<h5 style=\"text-align: left\">Video credit: &#8220;<a href=\"https:\/\/www.youtube.com\/watch?v=wuhNZejHeBg\">Lunar Eclipse Essentials<\/a>&#8221; by <a href=\"https:\/\/www.youtube.com\/channel\/UCAY-SMFNfynqz1bdoaV8BeQ\">NASA<\/a> is public domain<\/h5>\n<div>\n<p><strong>Seasons<\/strong><\/p>\n<p>Earth orbits in the same plane as the other planets in our solar system: the <a class=\"glossary-term\" aria-haspopup=\"dialog\" aria-describedby=\"definition\" href=\"#term_128_264\">Plane of the Ecliptic<\/a>. However, Earth&#8217;s is also tilted on it axis. This tilt never changes in relation to space, so different areas of Earth are tilted toward the Sun at different times of year. This is why we have seasons.<\/p>\n<ul>\n<li>If a hemisphere is tilted towards the Sun it gets more sunlight and it warms up&#8211;aka summer.<\/li>\n<li>If a hemisphere is tilted away from the Sun it gets less sunlight and it cools down&#8211;aka winter.<\/li>\n<\/ul>\n<p>Additionally, the Northern and Southern Hemispheres have opposite seasons due to the tilt of Earth&#8217;s axis. When the Northern Hemisphere is tilted towards the Sun it is summer (this is winter in the Southern Hemisphere). When the Southern Hemisphere is tilted towards the Sun it is summer (this is winter in the Northern Hemisphere).<\/p>\n<p>Earth&#8217;s seasons are explained in the image below.<\/p>\n<figure id=\"attachment_127\" aria-describedby=\"caption-attachment-127\" style=\"width: 500px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-127 size-full\" src=\"http:\/\/pressbooks.usnh.edu\/methods\/wp-content\/blogs.dir\/31\/files\/2023\/03\/seasons.en_.jpg\" alt=\"\" width=\"500\" height=\"647\" srcset=\"https:\/\/pressbooks.usnh.edu\/methods\/files\/2023\/03\/seasons.en_.jpg 500w, https:\/\/pressbooks.usnh.edu\/methods\/files\/2023\/03\/seasons.en_-232x300.jpg 232w, https:\/\/pressbooks.usnh.edu\/methods\/files\/2023\/03\/seasons.en_-65x84.jpg 65w, https:\/\/pressbooks.usnh.edu\/methods\/files\/2023\/03\/seasons.en_-225x291.jpg 225w, https:\/\/pressbooks.usnh.edu\/methods\/files\/2023\/03\/seasons.en_-350x453.jpg 350w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><figcaption id=\"caption-attachment-127\" class=\"wp-caption-text\">Image credit: <a href=\"https:\/\/spaceplace.nasa.gov\/seasons\/en\/\">Seasons<\/a> by <a href=\"https:\/\/spaceplace.nasa.gov\">NASA Space Place<\/a>\u00a0is public domain<\/figcaption><\/figure>\n<p><strong>Shadows<\/strong><\/p>\n<div class=\"textbox textbox--examples\">\n<header class=\"textbox__header\">\n<h3 class=\"textbox__title\"><span style=\"color: #ffffff\">Watch the video, below, to learn more about the tropic lines and Earth&#8217;s shadows. The following practice questions will be explained in the video:<\/span><\/h3>\n<\/header>\n<div class=\"textbox__content\">\n<ol>\n<li>It is the <a class=\"glossary-term\" aria-haspopup=\"dialog\" aria-describedby=\"definition\" href=\"#term_128_250\">Summer Solstice<\/a> in the Southern Hemisphere and you are standing on the Tropic of Capricorn. It is noon, so the Sun is directly above you. Which direction does your shadow point?<\/li>\n<li>If you are in Iowa, what will happen to the length of your shadow as we approach the Spring <a class=\"glossary-term\" aria-haspopup=\"dialog\" aria-describedby=\"definition\" href=\"#term_128_248\">Equinox<\/a>?<\/li>\n<\/ol>\n<p><iframe loading=\"lazy\" id=\"oembed-1\" title=\"Shadows Video\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/4WNZvBrNr6g?feature=oembed&#38;rel=0\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"textbox textbox--key-takeaways\">\n<header class=\"textbox__header\">\n<p class=\"textbox__title\">Key Takeaways<\/p>\n<\/header>\n<div class=\"textbox__content\">\n<ul>\n<li>As Earth orbits around the Sun, different areas receive direct or indirect sunlight due to the tilt of Earth on its axis. This is what causes seasons.<\/li>\n<li>Earth&#8217;s distance away from the Sun does not cause the seasons.<\/li>\n<li>The tropic lines, equator, arctic circle all mark areas of specific direct sunlight.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<div class=\"textbox textbox--exercises\">\n<header class=\"textbox__header\"><span style=\"text-align: initial;font-size: 1em;background-color: #0b6396\">Next Generation Science Standards: <\/span><span style=\"text-align: initial;background-color: #ffffff;color: #333333;font-size: 1em;font-style: normal\">NGSS<\/span><\/header>\n<\/div>\n<div class=\"textbox textbox--exercises\"><\/div>\n<p><span style=\"text-decoration: underline\"><strong>Performance Expectations<\/strong><\/span><\/p>\n<table>\n<tbody>\n<tr>\n<th style=\"width: 57.1719px\">1-ESS1-1<\/th>\n<td style=\"width: 745.953px\">Use observations of the sun, moon, and stars to describe patterns that can be<br \/>\npredicted.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table>\n<tbody>\n<tr>\n<th style=\"width: 57.1719px\">1-ESS1-2.<\/th>\n<td style=\"width: 745.953px\"><span class=\"popup\" style=\"cursor: pointer\" title=\"\">Planning and Carrying Out InvestigationsPlanning and carrying out investigations to answer questions or test solutions to problems in K\u20132 builds on prior experiences and progresses to simple investigations, based on fair tests, which provide data to support explanations or design solutions.Make observations (firsthand or from media) to collect data that can be used to make comparisons.&#8220;&gt;Make observations<\/span>\u00a0<span class=\"popup\" style=\"cursor: pointer\" title=\"\">ESS1.B: Earth and the Solar SystemSeasonal patterns of sunrise and sunset can be observed, described, and predicted.&#8220;&gt;at different times of year<\/span>\u00a0<span class=\"popup\" style=\"cursor: pointer\" title=\"\">PatternsPatterns in the natural world can be observed, used to describe phenomena, and used as evidence.&#8220;&gt;to relate<\/span>\u00a0<span class=\"popup\" style=\"cursor: pointer\" title=\"\">ESS1.B: Earth and the Solar SystemSeasonal patterns of sunrise and sunset can be observed, described, and predicted.&#8220;&gt;the amount of daylight to the time of year.<\/span>\u00a0<span class=\"red\">[Clarification Statement: Emphasis is on relative comparisons of the amount of daylight in the winter to the amount in the spring or fall.] [<em>Assessment Boundary: Assessment is limited to relative amounts of daylight, not quantifying the hours or time of daylight.<\/em>]<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table>\n<tbody>\n<tr>\n<th>5-ESS1-2.<\/th>\n<td><span class=\"popup\" style=\"cursor: pointer\" title=\"\">Analyzing and Interpreting DataAnalyzing data in 3\u20135 builds on K\u20132 experiences and progresses to introducing quantitative approaches to collecting data and conducting multiple trials of qualitative observations. When possible and feasible, digital tools should be used.Represent data in graphical displays (bar graphs, pictographs and\/or pie charts) to reveal patterns that indicate relationships.&#8221;&gt;Represent data in graphical displays to reveal<\/span>\u00a0<span class=\"popup\" style=\"cursor: pointer\" title=\"\">PatternsSimilarities and differences in patterns can be used to sort, classify, communicate and analyze simple rates of change for natural phenomena.&#8221;&gt;patterns of<\/span>\u00a0<span class=\"popup\" style=\"cursor: pointer\" title=\"\">ESS1.B: Earth and the Solar SystemThe orbits of Earth around the sun and of the moon around Earth, together with the rotation of Earth about an axis between its North and South poles, cause observable patterns. These include day and night; daily changes in the length and direction of shadows; and different positions of the sun, moon, and stars at different times of the day, month, and year. (5-ESS1-2)&#8220;&gt;daily changes in length and direction of shadows, day and night, and the seasonal appearance of some stars in the night sky.<\/span>\u00a0<span class=\"red\">[Clarification Statement: Examples of patterns could include the position and motion of Earth with respect to the sun and selected stars that are visible only in particular months.] [<em>Assessment Boundary: Assessment does not include causes of seasons.<\/em>]<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table>\n<tbody>\n<tr>\n<th>MS-ESS1-1.<\/th>\n<td><span class=\"popup\" style=\"cursor: pointer\" title=\"\">Developing and Using ModelsModeling in 6\u20138 builds on K\u20135 experiences and progresses to developing, using, and revising models to describe, test, and predict more abstract phenomena and design systems.Develop and use a model to describe phenomena.&#8220;&gt;Develop and use a model<\/span>\u00a0<span class=\"popup\" style=\"cursor: pointer\" title=\"\">ESS1.A: The Universe and Its StarsPatterns of the apparent motion of the sun, the moon, and stars in the sky can be observed, described, predicted, and explained with models.ESS1.B: Earth and the Solar SystemThis model of the solar system can explain eclipses of the sun and the moon. Earth\u2019s spin axis is fixed in direction over the short-term but tilted relative to its orbit around the sun. The seasons are a result of that tilt and are caused by the differential intensity of sunlight on different areas of Earth across the year.&#8220;&gt;of the Earth-sun-moon system<\/span>\u00a0<span class=\"popup\" style=\"cursor: pointer\" title=\"\">Developing and Using ModelsModeling in 6\u20138 builds on K\u20135 experiences and progresses to developing, using, and revising models to describe, test, and predict more abstract phenomena and design systems.Develop and use a model to describe phenomena.&#8220;&gt;to describe<\/span>\u00a0<span class=\"popup\" style=\"cursor: pointer\" title=\"\">Patterns Patterns can be used to identify cause-and-effect relationships.&#8220;&gt;the cyclic patterns of<\/span>\u00a0<span class=\"popup\" style=\"cursor: pointer\" title=\"\">ESS1.A: The Universe and Its StarsPatterns of the apparent motion of the sun, the moon, and stars in the sky can be observed, described, predicted, and explained with models.ESS1.B: Earth and the Solar SystemThis model of the solar system can explain eclipses of the sun and the moon. Earth\u2019s spin axis is fixed in direction over the short-term but tilted relative to its orbit around the sun. The seasons are a result of that tilt and are caused by the differential intensity of sunlight on different areas of Earth across the year.&#8220;&gt;lunar phases, eclipses of the sun and moon, and seasons.<\/span>\u00a0\u00a0<span class=\"red\">[Clarification Statement: Examples of models can be physical, graphical, or conceptual.]<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"text-decoration: underline\"><strong>Disciplinary Core Ideas: DCI<\/strong><\/span><\/p>\n<p>First grade: <a href=\"http:\/\/www.nap.edu\/openbook.php?record_id=13165&amp;page=175\">ESS1.B: Earth and the Solar System<\/a><\/p>\n<ul>\n<li><a href=\"http:\/\/www.nap.edu\/openbook.php?record_id=13165&amp;page=175\">Seasonal patterns of sunrise and sunset can be observed, described, and predicted. (1-ESS1-2)<\/a><\/li>\n<\/ul>\n<p>Fifth grade: <a href=\"http:\/\/www.nap.edu\/openbook.php?record_id=13165&amp;page=175\">ESS1.B: Earth and the Solar System<\/a><\/p>\n<ul>\n<li><a href=\"http:\/\/www.nap.edu\/openbook.php?record_id=13165&amp;page=175\">The orbits of Earth around the sun and of the moon around Earth, together with the rotation of Earth about an axis between its North and South poles, cause observable patterns. These include day and night; daily changes in the length and direction of shadows; and different positions of the sun, moon, and stars at different times of the day, month, and year. (5-ESS1-2)<\/a><\/li>\n<\/ul>\n<p>Middle School<\/p>\n<p><a href=\"http:\/\/www.nap.edu\/openbook.php?record_id=13165&amp;page=175\">This model of the solar system can explain eclipses of the sun and the moon. Earth\u2019s spin axis is fixed in direction over the short-term but tilted relative to its orbit around the sun. The seasons are a result of that tilt and are caused by the differential intensity of sunlight on different areas of Earth across the year. (MS-ESS1-1)<\/a><\/p>\n<p><span style=\"text-decoration: underline\"><strong>Crosscutting Concepts: CCC<\/strong><\/span><\/p>\n<p>First grade: <a href=\"http:\/\/www.nap.edu\/openbook.php?record_id=13165&amp;page=85\">Patterns<\/a><\/p>\n<ul>\n<li><a href=\"http:\/\/www.nap.edu\/openbook.php?record_id=13165&amp;page=85\">Patterns in the natural world can be observed, used to describe phenomena, and used as evidence. (1-ESS1-1),(1-ESS1-2)<\/a><\/li>\n<\/ul>\n<p>&#8211;\u00a0&#8211;\u00a0&#8211;\u00a0&#8211;\u00a0&#8211;\u00a0&#8211;\u00a0&#8211;\u00a0&#8211;\u00a0&#8211;\u00a0&#8211;\u00a0&#8211;\u00a0&#8211;\u00a0&#8211;\u00a0&#8211;\u00a0&#8211;\u00a0&#8211;\u00a0&#8211;\u00a0&#8211;\u00a0&#8211;\u00a0&#8211;\u00a0&#8211;\u00a0&#8211;\u00a0&#8211;\u00a0&#8211;\u00a0&#8211;\u00a0&#8211;\u00a0&#8211;\u00a0&#8211;\u00a0&#8211;\u00a0&#8211;\u00a0&#8211;\u00a0&#8211;\u00a0&#8211;\u00a0&#8211;\u00a0&#8211;\u00a0&#8211;<\/p>\n<h3><span style=\"text-decoration: underline\"><strong><em>Connections to Nature of Science<\/em><\/strong><\/span><\/h3>\n<h3>Scientific Knowledge Assumes an Order and Consistency in Natural Systems<\/h3>\n<ul>\n<li>Science assumes natural events happen today as they happened in the past. (1-ESS1-1)<\/li>\n<li>Many events are repeated. (1-ESS1-1)<\/li>\n<\/ul>\n<h3><a href=\"http:\/\/www.nap.edu\/openbook.php?record_id=13165&amp;page=85\">Patterns<\/a><\/h3>\n<ul>\n<li><a href=\"http:\/\/www.nap.edu\/openbook.php?record_id=13165&amp;page=85\">Similarities and differences in patterns can be used to sort, classify, communicate and analyze simple rates of change for natural phenomena. (5-ESS1-2)<\/a><\/li>\n<\/ul>\n<h3><a href=\"http:\/\/www.nap.edu\/openbook.php?record_id=13165&amp;page=87\">Cause and Effect<\/a><\/h3>\n<ul>\n<li><a href=\"http:\/\/www.nap.edu\/openbook.php?record_id=13165&amp;page=87\">Cause and effect relationships are routinely identified and used to explain change. (5-PS2-1)<\/a><\/li>\n<\/ul>\n<h3><a href=\"http:\/\/www.nap.edu\/openbook.php?record_id=13165&amp;page=91\">Systems and System Models<\/a><\/h3>\n<ul>\n<li><a href=\"http:\/\/www.nap.edu\/openbook.php?record_id=13165&amp;page=91\">Models can be used to represent systems and their interactions. (MS-ESS1-2)<\/a><\/li>\n<\/ul>\n<h1><span style=\"text-decoration: underline\"><strong>Lesson ideas:<\/strong><\/span><\/h1>\n<ol>\n<li>Create a daily journal of sky observations: where the Sun is, what time sun rise and sun set, Moon position. Can be part of daily calendaring. Compare to seasons.<\/li>\n<li>Play with shadows outside and inside: shadow tag, tracing shadows with sidewalk chalk and seeing how they move throughout the day; compare shadows to where the Sun is. Play with shadows inside: shine flashlights on sticks indoors, have kids move the flashlight up and down to see how the lenght of shadow moves. Draw the shadow and write where the flashlight was.<\/li>\n<li>Experiment with Sun\/Moon\/Earth system as we did in class to understand equinoxes, solistices, eclipses, seasons, etc.<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<div class=\"glossary\"><span class=\"screen-reader-text\" id=\"definition\">definition<\/span><template id=\"term_128_247\"><div class=\"glossary__definition\" role=\"dialog\" data-id=\"term_128_247\"><div tabindex=\"-1\"><p>The theory that the Sun is at the center of our solar system.<\/p>\n<\/div><button><span aria-hidden=\"true\">&times;<\/span><span class=\"screen-reader-text\">Close definition<\/span><\/button><\/div><\/template><template id=\"term_128_246\"><div class=\"glossary__definition\" role=\"dialog\" data-id=\"term_128_246\"><div tabindex=\"-1\"><p>The theory that Earth is at the center of our solar system, and the Sun and other planets revolve around it.<\/p>\n<\/div><button><span aria-hidden=\"true\">&times;<\/span><span class=\"screen-reader-text\">Close definition<\/span><\/button><\/div><\/template><template id=\"term_128_248\"><div class=\"glossary__definition\" role=\"dialog\" data-id=\"term_128_248\"><div tabindex=\"-1\"><p>The day when there is an equal amount of day and night (12 hours each). Occurs when the Sun shines directly on the Equator.<\/p>\n<\/div><button><span aria-hidden=\"true\">&times;<\/span><span class=\"screen-reader-text\">Close definition<\/span><\/button><\/div><\/template><template id=\"term_128_249\"><div class=\"glossary__definition\" role=\"dialog\" data-id=\"term_128_249\"><div tabindex=\"-1\"><p>The day with the least of sunlight. In the Northern Hemisphere this occurs when the Sun shines directly on the Tropic of Capricorn.<\/p>\n<\/div><button><span aria-hidden=\"true\">&times;<\/span><span class=\"screen-reader-text\">Close definition<\/span><\/button><\/div><\/template><template id=\"term_128_250\"><div class=\"glossary__definition\" role=\"dialog\" data-id=\"term_128_250\"><div tabindex=\"-1\"><p>The day with the most sunlight. In the Northern Hemisphere this occurs when the Sun shines directly on the Tropic of Cancer.<\/p>\n<\/div><button><span aria-hidden=\"true\">&times;<\/span><span class=\"screen-reader-text\">Close definition<\/span><\/button><\/div><\/template><template id=\"term_128_264\"><div class=\"glossary__definition\" role=\"dialog\" data-id=\"term_128_264\"><div tabindex=\"-1\"><p>The disk-shaped plane in which everything in our solar system orbits around the Sun.<\/p>\n<\/div><button><span aria-hidden=\"true\">&times;<\/span><span class=\"screen-reader-text\">Close definition<\/span><\/button><\/div><\/template><\/div>","protected":false},"author":11,"menu_order":1,"template":"","meta":{"pb_show_title":"","pb_short_title":"","pb_subtitle":"","pb_authors":[],"pb_section_license":""},"chapter-type":[],"contributor":[],"license":[],"class_list":["post-128","chapter","type-chapter","status-publish","hentry"],"part":120,"_links":{"self":[{"href":"https:\/\/pressbooks.usnh.edu\/methods\/wp-json\/pressbooks\/v2\/chapters\/128","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pressbooks.usnh.edu\/methods\/wp-json\/pressbooks\/v2\/chapters"}],"about":[{"href":"https:\/\/pressbooks.usnh.edu\/methods\/wp-json\/wp\/v2\/types\/chapter"}],"author":[{"embeddable":true,"href":"https:\/\/pressbooks.usnh.edu\/methods\/wp-json\/wp\/v2\/users\/11"}],"version-history":[{"count":2,"href":"https:\/\/pressbooks.usnh.edu\/methods\/wp-json\/pressbooks\/v2\/chapters\/128\/revisions"}],"predecessor-version":[{"id":408,"href":"https:\/\/pressbooks.usnh.edu\/methods\/wp-json\/pressbooks\/v2\/chapters\/128\/revisions\/408"}],"part":[{"href":"https:\/\/pressbooks.usnh.edu\/methods\/wp-json\/pressbooks\/v2\/parts\/120"}],"metadata":[{"href":"https:\/\/pressbooks.usnh.edu\/methods\/wp-json\/pressbooks\/v2\/chapters\/128\/metadata\/"}],"wp:attachment":[{"href":"https:\/\/pressbooks.usnh.edu\/methods\/wp-json\/wp\/v2\/media?parent=128"}],"wp:term":[{"taxonomy":"chapter-type","embeddable":true,"href":"https:\/\/pressbooks.usnh.edu\/methods\/wp-json\/pressbooks\/v2\/chapter-type?post=128"},{"taxonomy":"contributor","embeddable":true,"href":"https:\/\/pressbooks.usnh.edu\/methods\/wp-json\/wp\/v2\/contributor?post=128"},{"taxonomy":"license","embeddable":true,"href":"https:\/\/pressbooks.usnh.edu\/methods\/wp-json\/wp\/v2\/license?post=128"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}