Physical vs Chemical Changes

Front

What is a physical change?

Back

A physical change is a change that affects one or more physical properties of a substance without altering its chemical composition.

Front

What is a chemical change?

Back

A chemical change is a change that results in the formation of new chemical substances.

Front

Give an example of a physical change.

Back

Ripping up paper is an example of a physical change.

Front

Give an example of a chemical change.

Back

Sour milk is an example of a chemical change.

Front

Is melting butter a physical or chemical change?

Back

Melting butter is a physical change.

Front

What happens to the substance in a physical change?

Back

The substance retains its original properties and composition.

Front

What happens to the substance in a chemical change?

Back

The substance undergoes a transformation and forms new substances with different properties.

Front

True or False: A physical change may produce a new substance.

Back

False.

Front

Which of the following is NOT a physical change: crumpled paper, pencil sharpening, shrunken clothing, or sour milk?

Back

Sour milk is NOT a physical change.

Front

What is an example of a reversible physical change?

Back

Freezing water to make ice cubes is a reversible physical change.