7th Grade Phase Change Review Amplify

Front

What happens to molecules in a substance when it changes from a liquid to a solid?

Back

The molecules move closer together and vibrate in place.

Front

What is the movement of molecules in a solid?

Back

The molecules move in place and do not flow.

Front

What occurs to the kinetic energy of molecules when they are heated?

Back

The kinetic energy increases, causing the molecules to move faster.

Front

Define 'Freedom of Movement' in the context of molecular behavior.

Back

Freedom of Movement refers to how molecules in a substance can move around relative to each other.

Front

What is 'Molecular Attraction'?

Back

Molecular Attraction is the pull between two molecules that is consistent for a substance.

Front

What happens to the movement of molecules when their kinetic energy decreases?

Back

The molecules move slower.

Front

Describe the molecular arrangement in a gas.

Back

In a gas, molecules are far apart and move freely, filling the available space.

Front

What is the phase change from solid to liquid called?

Back

Melting.

Front

What is the phase change from liquid to gas called?

Back

Vaporization.

Front

What is the phase change from gas to liquid called?

Back

Condensation.