---
title: 6.P1U1.1
description: Develop models to describe the atomic composition of simple molecules and extended structures. Download a sample unit.
image: https://www.knowatom.com/hubfs/Right%20Image.png
---
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# 6.P1U1.1
Analyze and interpret data to show that changes in states of matter are caused by different rates of movement of atoms in solids, liquids, and gases (Kinetic Theory).
[](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)
- [Planning and carrying out investigations](https://www.knowatom.com/planning-and-carrying-out-investigations)
- [Analyzing and interpreting data](https://www.knowatom.com/analyzing-and-interpreting-data)
- [Using mathematics and computational thinking](https://www.knowatom.com/using-mathematics-and-computational-thinking)
- [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
- [Structure and Properties of Matter](https://www.knowatom.com/structure-and-properties-of-matter)
- [Conservation of Energy and Energy Transfer](https://www.knowatom.com/conservation-of-energy-and-energy-transfer)
Crosscutting Concepts
- [Cause and Effect](https://www.knowatom.com/cause-and-effect)
- [Scale Proportion and Quantity](https://www.knowatom.com/scale-proportion-and-quantity)
- [Energy and Matter](https://www.knowatom.com/energy-and-matter)
[](https://cta-redirect.hubspot.com/cta/redirect/347944/b5a1446e-d782-4a5f-a019-0b3b98c8304f)
## Browse 6.P1U1.1 Lesson Plans
Grade Ranges All K-2 3-5 6-8
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.
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