Phase Changes

Which state of matter is shown?

• solid

• liquid

• gas

What phase change is happening?

• freezing

• condensation

• melting

• sublimation

Dry ice is frozen carbon dioxide. What phase change is happening to the dry ice?

• melting

• evaporation

• condensation

• sublimation

What phase change happens when dew forms on leaves?

• freezing

• melting

• deposition

• condensation

Which does not happen when ice melts?

• Heat is absorbed by the ice.

• Heat is released by the ice.

• The molecules of ice move farther apart.

• The molecules of ice move closer to each other.

Which of the following happen when water is boiled?

• Heat is absorbed by water.

• Heat is released by water.

• Molecules of water move farther apart.

• Molecules of water move closer to each other.

Give an example of solid to liquid phase change.

Give an example of liquid to gas phase change.