Changes of Matter

Let's Review!
What are the 3 states of matter?

• water, liquids, and air
• solids, liquids, and gases
• helium, water, and solids

A rock is an example of a...

• vapor
• gas
• liquid
• solid

All these are examples of ....

• liquids
• gases
• solids
• water

A tool used to measure temperature.

• scale
• graduated cylinder
• themometer
• magnifying glass

Students heated water in a container.
Later, the container seemed to be empty.
The heat caused the water to -

• freeze
• melt
• evaporate

What would happen to an ice cube if you were to place it on a sunny windowsill? 

• It would begin to boil.
• It would begin to freeze.
• It would begin to melt.

Which of the following would cause a substance to melt?

• heat 
• evaporation
• water vapor

What would happen to a box of crayons if you left it in the car all day during the summer? 

• They would turn in a gas.
• They would start to boil.
• They would melt or get very soft.

 
What is happening in this picture?

• Boiling
• Condensation
• Freezing
• Melting

When a popsicle melts, that state of matter changes from...

• a gas to a liquid
• a liquid to a gas
• a liquid to a solid
• a solid to a liquid