Phases of Matter

When heat is added to a solid, it ______________.

• freezes
• evaporates
• melts
• condenses

This is an example of a _________.

• solid
• liquid
• gas
• plasma

A substance that has a definite shape and volume.

• evaporation
• gas
• liquid
• solid

Which item is not made of matter?

• air
• water
• a pencil
• a shadow

The picture shows examples of...

• solids
• liquids
• oil
• gases

The drops of water that appear on the outside of a glass of cold juice on a warm day are an example of?

• Sublimation: A solid turning into a gas.
• Condensation: A gas changing to a liquid.
• Evaporation: A liquid changing to a gas.
• Deposition: A gas changing to a solid.

When heat is added to a liquid, it ______________.

• freezes
• evaporates
• melts
• condenses

__________________ happens when particles of a solid speed up and become able to move past one another.

• freezing

• melting

• condensation

• boiling

Particles in a ________ move as fast and as far away from each other as they can. They will continue to spread out until something stops them.

• liquids

• solids

• gas

As liquid water heats up, particles escape from the surface, this is called ______________.

• boiling

• evaporation

• melting

• freezing