Flashcard on Phases of Matter Bill Nye

Front

What are the three phases of matter?

Back

Solid, liquid, gas.

Front

Which phase of matter has molecules that are closely packed together?

Back

Solid.

Front

What is the role of energy in changing the phases of matter?

Back

Energy can change phases.

Front

What is the temperature of liquid nitrogen?

Back

-196 degrees Celsius.

Front

What happens to the molecules in a solid?

Back

They are closely packed and vibrate in place.

Front

What happens to the molecules in a liquid?

Back

They are close together but can move past each other.

Front

What happens to the molecules in a gas?

Back

They are far apart and move freely.

Front

What is vapor?

Back

A gas that is in contact with its liquid or solid phase.

Front

How does temperature affect the phase of matter?

Back

Increasing temperature can cause a solid to melt into a liquid or a liquid to evaporate into a gas.

Front

What is melting?

Back

The process of a solid turning into a liquid.