Assessment and study guide for grade 2 unit on matter.
Includes questions about matter molecules, observable properties, and changes in matter (physical and chemical).
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Plan and conduct an investigation to describe and classify different kinds of materials by their observable properties. Observations could include color, texture, hardness, and flexibility. Patterns could include the similar properties that different materials share.
Construct an argument with evidence that some changes caused by heating or cooling can be reversed and some cannot. Examples of reversible changes could include materials such as water and butter at different temperatures. Examples of irreversible changes could include cooking an egg, freezing a plant leaf, and heating paper.