Phase of matter

What is the main difference between a solid, a liquid, and a gas?

• The color of the substance

• The size of the molecules

• The speed of the molecules

• The shape of the container

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What happens to molecules when energy is added to a solid?

• They change color

• They start to move faster

• They stop moving

• They move slower

What is the temperature called where all molecular motion stops?

• Boiling point

• Absolute zero

• Freezing point

• Room temperature

Why can't we reach absolute zero?

• Because molecules are too big

• Because everything is connected and heat can sneak in

• Because it's too far away

• Because it's too hot

What happens when you open a can of soda?

• The liquid changes color

• The liquid turns into a solid

• The gas turns into a liquid

• The gas escapes and forms bubbles