Unit 7: States of Matter and Phase Changes

Which form of matter does not take the shape of its container?

• liquid
• gas
• solid
• air

What happens when my glass of water is sitting in the sun and disappears into a gas?

• evaporation
• burning
• melting
• freezing

How is a gas defined?

• Indefinite shape, indefinite volume
• Definite shape, definite volume
• Found in stars
• Definite volume, indefinite shape

What term describes a solid changing to a gas?

• Deposition
• Sublimation
• Evaporation
• Freezing

What term describes a liquid changing to a solid?

• Deposition
• Sublimation
• Evaporation
• Freezing

Particles (molecules) in a ______________________ have more energy than the other states of matter.

• gas
• solid
• liquid

Molecules are closest together in a 

• Solid
• Liquid
• Gas

The state of matter that has no definite size or shape is

• Solid
• Liquid
• Gas

When a gas changes directly to a solid, the process is known as what?

• Sublimation
• Condensation
• Deposition
• Evaporation

Water can be a solid, liquid, and a gas.

• True
• False
  liquid