PHYSICAL AND CHEMICAL CHANGES

Front

What is a physical change?

Back

A change that occurs but does not result in the formation of a new substance.

Front

What is a chemical change?

Back

A change that results in the formation of one or more new substances.

Front

Give an example of a physical change.

Back

Butter melting.

Front

Give an example of a chemical change.

Back

A white tablet dropped into water that produces bubbles.

Front

What is an irreversible change?

Back

A change that cannot be undone, such as frying an egg.

Front

What is a reversible change?

Back

A change that can be undone, such as freezing and melting water.

Front

What happens during a chemical change?

Back

Atoms rearrange to form new substances.

Front

What is the difference between physical and chemical changes?

Back

Physical changes do not create new substances, while chemical changes do.

Front

What is an example of an irreversible physical change?

Back

Baking a cake.

Front

What is an example of a reversible physical change?

Back

Dissolving sugar in water.