--- title: S2P2 description: S2P2 Obtain, evaluate, and communicate information to explain the effect of a force (a push or a pull) in the movement of an object (changes in speed and direction). 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/) # S2P2 Obtain, evaluate, and communicate information to explain the effect of a force (a push or a pull) in the movement of an object (changes in speed and direction). [![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 K-PS3-1 Lesson Plans Grade Ranges All K-2 3-5 6-8 [![](https://www.knowatom.com/hubfs/image1-Oct-07-2023-11-07-17-5091-AM.png) ](https://www.knowatom.com/science-phenomena-videos/2nd-grade-science/action-reaction-forces) ## [Action-Reaction Forces In the last unit, students explored how shelters help animals survive in their environment. In this unit, students investigate the relationship between forces and motion, building propeller cars to observe action-reaction forces, the relationship between the distance their car travels and the amount of force applied, and how friction affects motion.](https://www.knowatom.com/science-phenomena-videos/2nd-grade-science/action-reaction-forces) [ VIEW LESSON ](https://www.knowatom.com/science-phenomena-videos/2nd-grade-science/action-reaction-forces) [![](https://www.knowatom.com/hubfs/image2-3.png) ](https://www.knowatom.com/science-phenomena-videos/kindergarten-science/pushes-and-pulls) ## [Pushes and Pulls In the third and final unit of Kindergarten, students investigate how pushes and pulls are forces that change the motion of an object. They apply their scientific knowledge to design a solution that solves a problem.](https://www.knowatom.com/science-phenomena-videos/kindergarten-science/pushes-and-pulls) [ VIEW LESSON ](https://www.knowatom.com/science-phenomena-videos/kindergarten-science/pushes-and-pulls) [![](https://www.knowatom.com/hubfs/image3-3.png) ](https://www.knowatom.com/science-phenomena-videos/kindergarten-science/forces-and-motion) ## [Forces and Motion In this unit, students explore how forces cause an object’s motion to change. They begin by exploring how objects move in different directions when they are pushed or pulled, and then investigate how changing the strength of a force changes the distance an object moves.](https://www.knowatom.com/science-phenomena-videos/kindergarten-science/forces-and-motion) [ VIEW LESSON ](https://www.knowatom.com/science-phenomena-videos/kindergarten-science/forces-and-motion) [![](https://www.knowatom.com/hubfs/image3-3.png) ](https://www.knowatom.com/science-phenomena-videos/kindergarten-science/engineering-marble-movers) ## [Engineering Marble Movers In this unit, students discover that pushes and pulls are forces that change the motion of an object. They begin by exploring how objects move in different directions when they are pushed or pulled, and then investigate how changing the strength of a force changes the distance an object moves. They then use a model to see how friction affects the distance and speed with which an object moves over a surface. ](https://www.knowatom.com/science-phenomena-videos/kindergarten-science/engineering-marble-movers) [ VIEW LESSON ](https://www.knowatom.com/science-phenomena-videos/kindergarten-science/engineering-marble-movers) [![](https://www.knowatom.com/hubfs/image3-Oct-07-2023-11-10-00-3019-AM.png) ](https://www.knowatom.com/science-phenomena-videos/2nd-grade-science/friction) ## [Friction In this unit, students use propeller cars to explore the science phenomena of forces. They investigate action-reaction forces and see if a propeller car travels farther when its rubber band releases a smaller or larger force. Students then explore how friction affects motion by testing how far their car moves after rolling over smooth and rough surfaces.](https://www.knowatom.com/science-phenomena-videos/2nd-grade-science/friction) [ VIEW LESSON ](https://www.knowatom.com/science-phenomena-videos/2nd-grade-science/friction) 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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