7th Grade Phase Change Review Amplify

Front

What is a phase change?

Back

A phase change is a transition of matter from one state to another, such as solid to liquid or liquid to gas.

Front

What happens to molecules during a phase change?

Back

Molecules either gain or lose energy, which affects their movement and arrangement.

Front

What is kinetic energy?

Back

Kinetic energy is the energy that an object has because it is moving.

Front

What is the difference between a solid and a liquid in terms of molecular movement?

Back

In a solid, molecules vibrate in place; in a liquid, molecules move around each other.

Front

What occurs when energy is added to a solid?

Back

When energy is added to a solid, it can cause the solid to melt and become a liquid.

Front

What is the term for a substance changing from a liquid to a gas?

Back

Vaporization.

Front

What is the term for a substance changing from a gas to a liquid?

Back

Condensation.

Front

What is the term for a substance changing from a liquid to a solid?

Back

Freezing.

Front

What is the term for a substance changing from a solid to a liquid?

Back

Melting.

Front

What is the role of temperature in phase changes?

Back

Temperature affects the energy of molecules, influencing their state of matter.