Amplify Phase Change Ch 1 Flashcardizz

Front

What is a phase change?

Back

A phase change is a transition of matter from one state (solid, liquid, gas) to another due to changes in energy or temperature.

Front

What happens to molecules during a phase change?

Back

Molecules either gain or lose energy, which causes them to move differently, but they do not disappear or change into new types of molecules.

Front

What is the state of matter that has a definite shape and volume?

Back

Solid.

Front

What is the state of matter that has a definite volume but takes the shape of its container?

Back

Liquid.

Front

What is the state of matter that has no definite shape or volume?

Back

Gas.

Front

How do molecules behave in a solid?

Back

Molecules in a solid are closely packed together and vibrate in place.

Front

How do molecules behave in a liquid?

Back

Molecules in a liquid are close together but can flow past one another.

Front

How do molecules behave in a gas?

Back

Molecules in a gas are far apart and move freely with a lot of energy.

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.