Remember the law of cooling from The First Great Lesson? When particles get colder, they come closer together. When particles get warmer, they get further apart. This section will explore what “cold” and “hot” mean for different kinds of particles. We will talk about melting and freezing, and learn about how particles can change between the different states of matter.
What you’ll learn:
- Solids, liquids and gases can change when the temperature changes.
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- 8 Sections
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