--- title: S2E3 description: S2E3 Obtain, evaluate, and communicate information about how weather, plants, animals, and humans cause changes to the environment. 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/) # S2E3 Obtain, evaluate, and communicate information about how weather, plants, animals, and humans cause changes to the environment. [![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 - [Developing and using models](https://www.knowatom.com/developing-and-using-models) - [Planning and carrying out investigations](https://www.knowatom.com/planning-and-carrying-out-investigations) - [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 - [Weather and Climate](https://www.knowatom.com/weather-and-climate) - [Conservation of Energy and Energy Transfer](https://www.knowatom.com/conservation-of-energy-and-energy-transfer) Crosscutting Concepts - [Patterns](https://www.knowatom.com/patterns) - [Cause and Effect](https://www.knowatom.com/cause-and-effect) [![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) ## Browse S2E3 Lesson Plans Grade Ranges All K-2 3-5 6-8 [![](https://www.knowatom.com/hubfs/image2-Oct-07-2023-10-26-56-0229-AM.png) ](https://www.knowatom.com/science-phenomena-videos/2nd-grade-science/earth-events) ## [Earth Events In the last unit, students explored the properties of different kinds of matter, connecting a material’s properties with the functions for which it is used. In this unit, students focus on Earth materials and the science phenomena of processes that change them (specifically weathering and erosion). ](https://www.knowatom.com/science-phenomena-videos/2nd-grade-science/earth-events) [ VIEW LESSON ](https://www.knowatom.com/science-phenomena-videos/2nd-grade-science/earth-events) [![](https://www.knowatom.com/hubfs/image3-Oct-07-2023-10-28-21-7007-AM.png) ](https://www.knowatom.com/science-phenomena-videos/2nd-grade-science/controlling-erosion) ## [Controlling Erosion In this unit, students explore the science phenomena of different processes that change Earth’s surface over time. Once students have investigated how wind and water change the shape of the land, they use their scientific knowledge to engineer a solution that prevents rainwater from washing away a sandy hillside. This page showcases key components of this lesson. ](https://www.knowatom.com/science-phenomena-videos/2nd-grade-science/controlling-erosion) [ VIEW LESSON ](https://www.knowatom.com/science-phenomena-videos/2nd-grade-science/controlling-erosion) [![](https://www.knowatom.com/hubfs/image3-Oct-07-2023-10-32-25-3571-AM.png) ](https://www.knowatom.com/science-phenomena-videos/2nd-grade-science/water-flow) ## [Water Flow In this unit, students explore the phenomena of Earth landforms and the water cycle. Once students have modeled landforms and created maps showing the shapes and kinds of land and bodies of water, students analyze how water moves over the land as it flows downhill because of gravity and cycles between solid and liquid depending on the amount of heat present. ](https://www.knowatom.com/science-phenomena-videos/2nd-grade-science/water-flow) [ VIEW LESSON ](https://www.knowatom.com/science-phenomena-videos/2nd-grade-science/water-flow) [![](https://www.knowatom.com/hubfs/Seasonal-Patterns-1.jpg) ](https://www.knowatom.com/science-phenomena-videos/1st-grade-science/seasonal-temperature-and-water-cycles) ## [Seasonal Temperatures and Water Cycles In this unit, students investigate the science phenomena of seasonal patterns and water cycles. Once students have analyzed how seasonal patterns of sunrise and sunset can be observed and predicted, they focus on seasonal temperature and rainfall patterns. They investigate temperature patterns of a specific location throughout the year. ](https://www.knowatom.com/science-phenomena-videos/1st-grade-science/seasonal-temperature-and-water-cycles) [ VIEW LESSON ](https://www.knowatom.com/science-phenomena-videos/1st-grade-science/seasonal-temperature-and-water-cycles) Standards citation: NGSS Lead States. 2013. *Next Generation Science Standards: For States, By State*s. Washington, DC: The National Academies Press. 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