Front

The outside layer of the earth is called _____________.

Back

Crust

Front

Which of the following is a chemical change?

Back

Rusting of a penny

Front

An object that lets light completely through is called _____________.

Back

Transparent

Front

Which material is most likely to expand if exposed to freezing temperatures?

Back

Water

Front

What most likely caused a ball rolling fast to slow down?

Back

Friction

Front

What is the term for a change that does not alter the chemical composition of a substance?

Back

Physical change

Front

What do we call materials that do not allow light to pass through?

Back

Opaque

Front

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

Back

Melting

Front

What is the term for the force that opposes motion between two surfaces?

Back

Friction

Front

What is the name of the layer of the Earth located beneath the crust?

Back

Mantle