States of matter vocabulary

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Across
  1. 3. To squash something into a smaller space
  2. 9. The parts of something move closer together and take up less space
  3. 10. A tiny piece of matter that we cannot see with our eyes
  4. 11. The space that something takes up
  5. 13. A liquid gains enough heat energy to turn into a gas
  6. 14. The particles in a ______ a close together but do not have a fixed shape
Down
  1. 1. The particles in a ______ are spaced out and always moving. They can be compressed.
  2. 2. A solid gains enough heat energy to turn into a liquid
  3. 4. Matter is anything that has weight and takes up space
  4. 5. To spread out and take up more space
  5. 6. A liquid loses so much heat energy that it turns to a solid
  6. 7. A liquid gains so much heat energy that it turns to a gas
  7. 8. A gas loses heat energy and turns into a liquid
  8. 11. To shake or move slightly
  9. 12. ______ have a fixed shape and fixed volume