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)

Question

Responses

a chemical change involving change of shape and size of matter
a chemical change involving change of shape and size of matter

a physical change involving change of shape and size of matter
a physical change involving change of shape and size of matter

a physical change involving change of mass
a physical change involving change of mass

a chemical change involving change of mass

Answer 1

Mrs. Clark has demonstrated a physical change involving change of shape and size of matter.

When the paper is cut into small pieces, its shape and size change, but its mass remains the same (20 g), indicating that no chemical change has occurred. Therefore, the best response is:

a physical change involving change of shape and size of matter.