Physical & Chemical Changes

Front

What is a Physical Change?

Back

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 change that results in the formation of new chemical substances, where the original substances are transformed into different substances.

Front

Give an example of a Physical Change.

Back

Melting ice into water.

Front

Give an example of a Chemical Change.

Back

Burning wood, which produces ash and smoke.

Front

What is the main difference between Physical and Chemical Changes?

Back

Physical changes do not change the substance's chemical identity, while chemical changes do.

Front

What happens to the atoms during a Chemical Change?

Back

Atoms are rearranged to form new substances.

Front

What happens to the atoms during a Physical Change?

Back

Atoms remain the same; only their arrangement or state changes.

Front

Is melting ice a Physical or Chemical Change?

Back

Physical Change.

Front

Is rusting of iron a Physical or Chemical Change?

Back

Chemical Change.

Front

What is an example of a reversible Physical Change?

Back

Freezing and melting of water.