Physical and Chemical Changes

Front

What state of matter spreads apart or squeezes together to fit into a space?

Back

Gas

Front

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

Back

True

Front

What is another name for a chemical change?

Back

Chemical reaction

Front

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

Back

False

Front

Which of these items would most likely rust?

Back

Iron or steel items exposed to moisture and oxygen.

Front

What is the process called when a solid turns into a liquid?

Back

Melting

Front

What is the process called when a liquid turns into a solid?

Back

Freezing

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.

Front

What happens to the thermal energy during melting?

Back

Thermal energy is absorbed.