Phase Changes

As water changes from solid to liquid to gas, what is happening to the energy of the molecules?

• Energy of the molecules increase

• Energy of the molecules decrease

• Energy of the molecules remain constant

• Energy of the molecules increase and decrease

Which phase of matter has a definite shape and volume.

• Solid

• Liquid

• Gas

Which phase has a definite volume, but takes the shape of its container

• Solid

• Liquid

• Gas

Which phase has no definite shape and no definite volume.

• Solid

• Liquid

• Gas

Which phase has the highest energy particles, move freely, and are far apart

• Gas

• Solid

• Liquid

Which phase are the particles close together, almost as close as a solid, but the particles are free to move and slide past each other

• Solid

• Liquid

• Gas

Which phase are the particles packed tightly together and the only motion is vibration.

• Solid

• Liquid

• Gas

2. A change of state from a liquid to a solid is called....

• Melting
• Freezing
• Evaporation

5. What is it called when a solid turns directly into a gas?

• Sublimation
• Condensation
• Liquid

Change from Gas to Solid is called........

• Sublimation
• Deposition
• Fusion
• condensation