Based on the results of this lab, write a short paragraph that summarizes how to distinguish physical changes from chemical changes. Physical changes occur when the properties of a substance are retained and/or the materials can be recovered after the change. Chemical changes involve the formation of a new substance.

Physical changes occur when the properties of a substance are retained and/or the materials can be recovered after the change. Chemical changes involve the formation of a new substance. Formation of a gas, solid, light, or heat are possible evidence of chemical change.

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Physical changes occur when the properties of a substance are retained and/or the materials can be recovered after the change.

Explanation:

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b. examine and describe cells