Phase changes of matter

Open Ended

What happens when you leave an ice cube in the sun?

Multiple Choice

Which of the following best describes what happens during a phase change?

• The chemical composition of a substance changes.

• The temperature of a substance always increases.

• The state of matter of a substance changes.

• The mass of a substance is lost.

Multiple Choice

Based on the images, what are the three states of water shown?

• Solid, Liquid, Gas

• Solid, Plasma, Gas

• Liquid, Gas, Plasma

• Solid, Liquid, Plasma

Multiple Choice

As heat is added to water, what sequence of phase changes does it go through?

• Solid → Liquid → Gas

• Gas → Liquid → Solid

• Liquid → Solid → Gas

• Solid → Gas → Liquid

Fill in the Blanks

The process of changing from a solid to a liquid is called

.

Multiple Choice

Which of the following statements about freezing is correct?

• Freezing happens when temperature gets higher.

• Freezing is the process of a solid turning into a liquid.

• Freezing happens when temperature gets lower and a liquid turns into a solid.

• Freezing only occurs with water.

Multiple Choice

What is the process called when liquid water turns into a gas at 212°F?

• Condensation

• Freezing

• Evaporation

• Sublimation

Multiple Choice

Which of the following phase changes involves a substance going directly from a solid to a gas?

• Evaporation

• Condensation

• Sublimation

• Melting

Fill in the Blanks

The molecules in water are always made of hydrogen and

.

Open Ended

Explain how temperature changes affect the states of matter in water, using examples from the diagrams.

Multiple Select

Which of the following are phase changes that involve a liquid?

• Evaporation

• Condensation

• Sublimation

• Melting

Multiple Choice

What causes the states of matter to change from one to another?

• Changes in temperature

• Changes in color

• Changes in size

• Changes in shape