States of Matter

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Across
  1. 4. change of state where a gas cools and turns into a liquid
  2. 8. change of state where a liquid turns into a gas, usually at the surface
  3. 9. state of matter where particles are close together but can move past each other
  4. 10. state of matter where particles are tightly packed and only vibrate
Down
  1. 1. measure of how hot or cold something is
  2. 2. change of state where a liquid becomes a solid when cooled
  3. 3. process of adding energy to a substance
  4. 4. process of removing energy from a substance
  5. 5. change of state where a solid becomes a liquid when heated
  6. 6. state of matter where particles are far apart and move freely in all directions
  7. 7. the form matter can be in, such as solid, liquid, or gas