Physical or Chemical Changes 1

Front

Is sour milk a chemical or physical change?

Back

Chemical change

Front

Is mowing the lawn a physical or chemical change?

Back

Physical change

Front

What characteristic defines all chemical changes?

Back

A new material is formed.

Front

Is moldy cheese a chemical or physical change?

Back

Chemical change

Front

Is a rusting bicycle a chemical or physical change?

Back

Chemical change

Front

What is a physical change?

Back

A change that does not alter the chemical composition of a substance.

Front

What is a chemical change?

Back

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

Front

Give an example of a physical change.

Back

Melting ice.

Front

Give an example of a chemical change.

Back

Burning wood.

Front

What happens to the molecules during a physical change?

Back

The molecules rearrange but do not change their chemical structure.