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Questions and Answers
What can you do to some solids?
What is a mixture?
What happens to liquid water when it gets very cold?
What happens to a solid when heat is added to it?
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What happens to water vapor when it gets cool?
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Study Notes
Routines
- Mindfulness is an important part of the class routine
- Attendance is also an important part of the class routine
- Setting the tone for the class is crucial
Review of Changes in Matter
- Matter can change in different ways
- Solids are different from each other but are made of the same thing
- Burning a matter changes its properties due to heat and air
- A mixture is two or more different things put together
- Some solids do not change when mixed, while others change properties
- Solids can dissolve or mix completely with liquids
- Not all mixtures can be mixed together
How Heat Can Change Matter
- Heat can change solids and liquids
- Liquid water can be changed to a solid by freezing
- When liquid gets very cold, it can freeze
- Freezing means to change from a liquid to a solid
- Frozen water can be changed back into a liquid by adding heat
- Melting means to change from a solid to a liquid
- Different solids melt with different amounts of heat
- Heat can also change gases and liquids
- When heat is removed, gas can change into a liquid
- When heat is added, a liquid can change into a gas
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