Front

What are the characteristics of particles in a solid state?

Back

Particles in a solid state vibrate in place and are closely packed together.

Front

What is evaporation?

Back

Evaporation is the process of a liquid changing into a gas.

Front

What is condensation?

Back

Condensation is the process of a gas changing into a liquid.

Front

Do all phase changes require energy to be added or taken away?

Back

True, all phase changes require energy to be added or taken away.

Front

What happens to particles when heat is added?

Back

When heat is added, particles speed up and spread out.

Front

What happens to particles when heat is removed?

Back

When heat is removed, particles slow down and compress.

Front

What is the process of a solid changing directly to a gas called?

Back

Sublimation.

Front

What is the process of a gas changing directly to a solid called?

Back

Deposition.

Front

What is the main difference between a liquid and a solid?

Back

In a solid, particles are fixed in place; in a liquid, particles can move around each other.

Front

What is the boiling point of water?

Back

The boiling point of water is 100 degrees Celsius (212 degrees Fahrenheit) at sea level.