Mrs. Clark has demonstrated a physical change involving change of shape and size of matter. The mass of the paper remains the same (20 g) before and after cutting it, indicating that no new substances were formed and that the total mass is conserved. Cutting the paper changes its shape and size but does not involve a chemical change.
Mrs. Clark decides to do a demonstration for her class with a piece of notebook paper. Using a balance, Mrs. Clark discovers that the mass of the paper is 20 g. She then takes the piece of paper and cuts it into several small pieces. The cumulative mass of the small pieces is 20 g. What has Mrs. Clark demonstrated for her class?(1 point) Responses a chemical change involving change of mass a chemical change involving change of mass a physical change involving change of mass a physical change involving change of mass a physical change involving change of shape and size of matter a physical change involving change of shape and size of matter a chemical change involving change of shape and size of matter
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