Phases & Phase Changes

Solids are...

• very organized.

• very disorganized.

Which of the following best describes the motion of particles in a solid?

• Moving freely in straight lines.

• Rotating around one another.

• Vibrating in place.

To go from a solid to a liquid you have to ______ energy.

• add

• remove

What is the phase change called when you go from a solid to a liquid?

• Freezing

• Melting

• Evaporation

Which is less organized, a liquid or a solid?

• A Liquid

• A Solid

Which of the following best describes the motion of particles in a liquid?

• Moving freely in straight lines.

• Rotating past one another.

• Vibrating in place.

Gas is the ______ organized of the three phases of matter.

• most

• least

Which of the following best describes the motion of particles in a gas?

• Moving freely in straight lines.

• Rotate past one another.

• Vibrate in place.

To go from a liquid to a gas you ______ energy.

• add

• remove

What is the phase change from a liquid to a gas called?

• Condensation

• vaporization

• Melting