Chemical and Physical Changes

Front

What is a physical change?

Back

A change that does not alter the substance's chemical composition, such as melting, freezing, or splitting.

Front

What is a chemical change?

Back

A change that results in the formation of one or more new substances, such as burning or rusting.

Front

What is matter?

Back

Anything that takes up space and has mass.

Front

Give an example of a physical change.

Back

Putting a bunch of fruit into a fruit bowl.

Front

Give an example of a chemical change.

Back

Burning wood.

Front

What happens to the molecules during a physical change?

Back

The arrangement of molecules may change, but their chemical structure remains the same.

Front

What happens to the molecules during a chemical change?

Back

The molecules rearrange to form new substances with different properties.

Front

Is dissolving sugar in water a physical or chemical change?

Back

Physical change.

Front

What is an example of a reversible physical change?

Back

Freezing and melting of water.

Front

What is an example of an irreversible chemical change?

Back

Cooking an egg.