Physical and Chemical Changes

Front

What is a physical change?

Back

A change in size, shape, or matter that does not create something new.

Front

What is a chemical change?

Back

A change that results in the formation of new chemical substances.

Front

True or False: Boiling is a physical change.

Back

True

Front

True or False: Freezing is a chemical change.

Back

False

Front

What happens to thermal energy when a liquid boils?

Back

Thermal energy is added.

Front

What happens to thermal energy when a liquid freezes?

Back

Thermal energy is removed.

Front

What is an example of a physical change?

Back

Melting ice.

Front

What is an example of a chemical change?

Back

Rusting of iron.

Front

True or False: Melting is a process that removes thermal energy.

Back

False

Front

What is the process of a solid turning into a liquid called?

Back

Melting.