Physical and Chemical Changes

Front

What happens to a sugar cube in hot water over time?

Back

It will dissolve.

Front

What is a change in matter that forms a new substance?

Back

Chemical change.

Front

True or False: The state of matter cannot be changed depending on whether heat is added or removed.

Back

False.

Front

True or False: When changing a liquid to a solid, thermal energy is removed for freezing.

Back

True.

Front

Why is ice melting considered a physical change?

Back

Nothing new was created; there was only a change in the state of matter.

Front

What is a physical change?

Back

A change that does not create a new substance, only changes the form or appearance.

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 during a chemical change?

Back

Atoms rearrange to form new substances.