Changes of State in Matter
Explore the different states of matter (solid, liquid, gas) and how they change from one state to another through heating and cooling.
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Changes of State in Matter
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Read each question carefully and answer to the best of your ability. This worksheet will help you understand how matter changes its state.
Take a look at the image below which shows the different states of matter and how they transition.

1. When a solid turns into a liquid, it is called .
2. When a liquid turns into a gas, it is called .
3. When a gas turns into a liquid, it is called .
4. When a liquid turns into a solid, it is called .
1. Which of the following is an example of a solid?
Water
Air
Ice
Steam
2. What happens to water when it boils?
It freezes
It melts
It condenses
It evaporates
1. Heating a substance always turns it into a gas.
True
False
2. Freezing occurs when a liquid loses heat and turns into a solid.
True
False
1. Describe what happens to water when it is placed in a freezer.
2. Give an example of evaporation that you have seen in real life.