Chemical and Physical Changes

Front

What is a physical change?

Back

A change in the form or appearance of a substance.

Front

What is a chemical change?

Back

When two or more substances combine to make a new chemical substance.

Front

Is melting ice a chemical or physical change?

Back

Physical change.

Front

Is a firework explosion a chemical or physical change?

Back

Chemical change.

Front

Does a physical change alter the substance itself?

Back

No.

Front

What happens to molecules during a chemical change?

Back

Molecules interact and change into a new substance.

Front

Give an example of a physical change.

Back

Ice melting into water.

Front

Give an example of a chemical change.

Back

Burning wood.

Front

What is an indicator of a chemical change?

Back

Formation of a new substance.

Front

What is an indicator of a physical change?

Back

Change in state or appearance.