--- title: 3.2.3.B description: 3.2.3.B Plan and conduct an investigation to provide evidence of the effects of balanced and unbalanced forces on the motion of an object. 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/) # 3.2.3.B Plan and conduct an investigation to provide evidence of the effects of balanced and unbalanced forces on the motion of an object. [![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 3.2.3.B Lesson Plans Grade Ranges All K-2 3-5 6-8 [![](https://www.knowatom.com/hubfs/image4-Oct-07-2023-11-45-35-6461-AM.png) ](https://www.knowatom.com/science-phenomena-videos/3rd-grade-science/motion-in-the-solar-system) ## [Motion in the Solar System In this lesson, students model the solar system and analyze Earth’s place in the system as well as how the force of gravity causes the planets to move around the sun in predictable, regular paths. This page serves to highlight the key components of this lesson.](https://www.knowatom.com/science-phenomena-videos/3rd-grade-science/motion-in-the-solar-system) [ VIEW LESSON ](https://www.knowatom.com/science-phenomena-videos/3rd-grade-science/motion-in-the-solar-system) [![](https://www.knowatom.com/hubfs/image3-Oct-07-2023-02-41-11-9781-PM.png) ](https://www.knowatom.com/science-phenomena-videos/4th-grade-science/balanced-vs-unbalanced-forces) ## [Balanced vs. Unbalanced Forces In this unit, students analyze the phenomena of matter, forces, and energy. In this lesson, they compare the effects of unbalanced versus balanced forces on objects. They then evaluate how matter interacts with and is changed by energy, which transfers from one object or system to another. This page showcases key components of this lesson.](https://www.knowatom.com/science-phenomena-videos/4th-grade-science/balanced-vs-unbalanced-forces) [ VIEW LESSON ](https://www.knowatom.com/science-phenomena-videos/4th-grade-science/balanced-vs-unbalanced-forces) [![](https://www.knowatom.com/hubfs/image1-Oct-07-2023-11-29-44-7026-AM.png) ](https://www.knowatom.com/science-phenomena-videos/3rd-grade-science/comparing-forces) ## [Comparing Forces In this unit, students learn about the tiny particles called atoms that make up all matter in the universe. In this lesson, students compare the effects of different forces on objects. This page serves to highlight the key components of this lesson.](https://www.knowatom.com/science-phenomena-videos/3rd-grade-science/comparing-forces) [ VIEW LESSON ](https://www.knowatom.com/science-phenomena-videos/3rd-grade-science/comparing-forces) [![](https://www.knowatom.com/hubfs/image1-Oct-07-2023-12-34-48-4196-PM.png) ](https://www.knowatom.com/science-phenomena-videos/3rd-grade-science/windmill-forces) ## [Windmill Forces In this unit, students bring together what they have learned about the interactions of energy and matter to explore the science phenomena of relationships between energy, force, and motion. In this lesson, they investigate how windmills transfer the kinetic energy in wind so that it can be used to do work, and then use that knowledge to analyze balanced and unbalanced forces. ](https://www.knowatom.com/science-phenomena-videos/3rd-grade-science/windmill-forces) [ VIEW LESSON ](https://www.knowatom.com/science-phenomena-videos/3rd-grade-science/windmill-forces) 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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