6-PS1-4 States of Matter Test

1. In which state of matter are molecules moving the slowest?

• A. solid
• B. liquid
• C. gas
• D. semifluid

2. In a solid, what happens to the atoms?

• A. They move freely.
• B. They are widely spaced.
• C. They vibrate in position but do not change relative locations.
• D. They become gaseous.

3. Which of the following causes a solid to change to a liquid?

• A. Heat
• B. the freezing point
• C. cold
• D. condensation

4. What point has water reached when it turns from a liquid to a gas?

• A. its boiling point
• B. its freezing point
• C. its melting point
• D. its heating point

5.What occurs when a liquid turns to a gas?

• A. evaporation
• B. condensation
• C. the molecules move slower
• D. the molecules hit their freezing point

6. What happens when water reaches its boiling point?

• A. It turns form a liquid into a solid.
• B. It turns from a solid into a liquid.
• C. It turns from a liquid into a gas.
• D. It turns from a gas into a liquid.

7. Which of the following is a solid?

• A. milk
• B. cheese
• C. steam
• D. juice

8. Which of the following is a property of a liquid?

• A. It has a definite shape.
• B. It does not have a definite mass.
• C. It takes the shape of the container you choose.
• D. Its atoms are packed tightly together.

9. When thermal energy is transferred into a substance, it can cause a change from a solid to a liquid or from a liquid to a gas. This process is known as ______________.

• A. melting
• B. evaporation
• C. condensation
• D. freezing

10.What does all matter have?

• A. ice
• B. liquide
• C. mass
• D. air