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Topic: Structure and Properties of Matter NGSS 2-PS1-1: Plan and conduct an investigation to describe and classify different kinds of materials by their observable properties. NGSS 2-PS1-4: Construct an argument with evidence that some changes caused by heat or cooling can be reversed and some cannot. NGSS 2-PS-A: Different kinds of matter exist and many of them can be either solid or liquid, depending on temperature. Matter can be described and classified by its observational patterns. NGSSS 2-PS-B: Heating or cooling a substance may cause changes that can be observed. Sometimes these changes are reversible and some are not. Explaining Matter with Elements: This interactive article shows visual representations of how atoms and molecules interact in the various forms of matter - solid, liquid, and gas. Science 101: What Causes the Different States of Matter: This article discusses the characteristics of each solid, gas, and liquid and how molecules behave in each state. T
Elementary
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