--- title: 8.MS-ESS1-2 description: 8.MS-ESS1-2 Develop and use a model of the Earth-sun system to explain the cyclical pattern of seasons, which includes the Earth’s tilt and differential intensity of sunlight on different areas of Earth across the year. image: https://www.knowatom.com/hubfs/Right%20Image.png --- [![Teacher Login](https://no-cache.hubspot.com/cta/default/347944/f56bee57-133e-4975-8055-799f1f23588b.png)](https://cta-redirect.hubspot.com/cta/redirect/347944/f56bee57-133e-4975-8055-799f1f23588b) [Teacher Login](https://app.knowatom.com/signin) [![KnowAtom Logo](https://www.knowatom.com/hubfs/KnowAtom%20Logo.svg "KnowAtom Logo")](https://www.knowatom.com/) # 8.MS-ESS1-2 Develop and use a model of the Earth-sun system to explain the cyclical pattern of seasons, which includes the Earth’s tilt and differential intensity of sunlight on different areas of Earth across the year. [![Download a Sample Unit](https://no-cache.hubspot.com/cta/default/347944/20eee377-e175-48fe-a039-ae723137a2a6.png)](https://cta-redirect.hubspot.com/cta/redirect/347944/20eee377-e175-48fe-a039-ae723137a2a6) Science & Engineering Practices - [Asking questions and defining problems](https://www.knowatom.com/asking-questions-and-defining-problems) - [Developing and using models](https://www.knowatom.com/developing-and-using-models) - [Analyzing and interpreting data](https://www.knowatom.com/analyzing-and-interpreting-data) - [Constructing explanations and designing solutions](https://www.knowatom.com/constructing-explanations-and-designing-solutions) - [Engaging in argument from evidence](https://www.knowatom.com/engaging-in-argument-from-evidence) - [Obtaining evaluating and communicating information](https://www.knowatom.com/obtaining-evaluating-and-communicating-information) Disciplinary Core Ideas - [Earth and the Solar System](https://www.knowatom.com/earth-and-the-solar-system) - [Types of Interactions](https://www.knowatom.com/types-of-interaction) [![New call-to-action](https://no-cache.hubspot.com/cta/default/347944/b5a1446e-d782-4a5f-a019-0b3b98c8304f.png)](https://cta-redirect.hubspot.com/cta/redirect/347944/b5a1446e-d782-4a5f-a019-0b3b98c8304f) ## 8.MS-ESS1-2 Grade Ranges All K-2 3-5 6-8 [![](https://www.knowatom.com/hubfs/image1-Oct-08-2023-08-04-00-7070-PM.png) ](https://www.knowatom.com/science-phenomena-videos/6th-grade-science/sun-earth-moon-system) ## [Sun-Earth-Moon System In this unit, students analyze the science phenomena patterns in the Earth-Moon-Sun system that result from orbital motion, which is caused by gravity and inertia. This page is a high-level extract of the first lesson in this unit. ](https://www.knowatom.com/science-phenomena-videos/6th-grade-science/sun-earth-moon-system) [ VIEW LESSON ](https://www.knowatom.com/science-phenomena-videos/6th-grade-science/sun-earth-moon-system) [![](https://www.knowatom.com/hubfs/image1-Nov-01-2023-06-55-45-7330-AM.png) ](https://www.knowatom.com/science-phenomena-videos/7th-grade-science/earth-sun-moon-system) ## [Earth-Sun-Moon System In this unit, students explore the science phenomena gravity and its role in the universe. In this lesson they investigate how gravity within the Earth-sun-moon system causes different observable patterns. This page showcases key elements in this lesson. ](https://www.knowatom.com/science-phenomena-videos/7th-grade-science/earth-sun-moon-system) [ VIEW LESSON ](https://www.knowatom.com/science-phenomena-videos/7th-grade-science/earth-sun-moon-system) [![](https://www.knowatom.com/hubfs/image4-Nov-01-2023-05-57-44-5420-AM.png) ](https://www.knowatom.com/science-phenomena-videos/7th-grade-science/earths-place-in-the-solar-system) ## [Earth's Place in the Solar System In this unit, students explore the vastness and mysteriousness of the universe, exploring how the Earth-sun-moon system fits into solar system phenomena and the Milky Way Galaxy. In this lesson they evaluate phenomena related to gravity’s role in forming the solar system and how mass and gravity determine weight on other planets. This page showcases key elements in this lesson.](https://www.knowatom.com/science-phenomena-videos/7th-grade-science/earths-place-in-the-solar-system) [ VIEW LESSON ](https://www.knowatom.com/science-phenomena-videos/7th-grade-science/earths-place-in-the-solar-system) Standards citation: NGSS Lead States. 2013. *Next Generation Science Standards: For States, By State*s. Washington, DC: The National Academies Press. Neither WestEd nor the lead states and partners that developed the Next Generation Science Standards were involved in the production of this product, and do not endorse it. ![KnowAtom Logo](https://www.knowatom.com/hubfs/KnowAtom%20Logo.svg "KnowAtom Logo") Quick Links Resources Sign Up for Our Blog ### Sign Up for Our Blog Connect with Us - - - - © 2026 KnowAtom LLC  •  10 Brady Drive Unit 3   •  Ipswich MA •   01938 USA [DO NOT SELL MY PERSONAL INFORMATION](https://www.knowatom.com/do-not-sell-my-personal-information) | [Privacy Policy](https://www.knowatom.com/privacy-policy) | [Terms of Use](https://www.knowatom.com/terms-of-use) ```json { "@context" : "http://schema.org", "@type" : "Organization", "address" : { "@type" : "PostalAddress", "addressCountry" : "USA", "addressLocality" : "Salem", "addressRegion" : "MA", "postalCode" : "01970", "streetAddress" : "27 Congress Suite 410" }, "alternateName" : "KA", "areaServed" : { "@type" : "GeoCircle", "geoMidpoint" : { "@type" : "GeoCoordinates", "latitude" : "+42.5182274", "longitude" : "-70.8877569" }, "geoRadius" : "150 km" }, "description" : "Next Generation Science STEM Curriculum", "email" : "fvigeant@knowatom.com", "image" : "https://www.knowatom.com/hubfs/KA-GSD.png", "logo" : "https://www.knowatom.com/hubfs/Knowatom-2017/Image/logo-1.png", "mainEntityOfPage" : { "@id" : "https://www.knowatom.com/8.ms-ess1-2", "@type" : "WebPage", "description" : "8.MS-ESS1-2 Develop and use a model of the Earth-sun system to explain the cyclical pattern of seasons, which includes the Earth’s tilt and differential intensity of sunlight on different areas of Earth across the year." }, "name" : "KnowAtom", "sameAs" : [ "https://www.facebook.com/KnowAtom", "https://twitter.com/KnowAtom", "https://www.youtube.com/channel/UCS0rbN0RfqaU1xaISrdVpTA", "https://plus.google.com/110709105138117096940" ], "telephone" : "(617) 475-3475", "url" : "https://www.knowatom.com" } ```