Foundations of Matter

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Across
  1. 4. The change of state from a liquid to a solid when cooled
  2. 6. A very small piece of matter that makes up substances
  3. 8. The way particles are organised
  4. 10. The amount of space an objector substance takes up
  5. 12. The amount of matter in an object
  6. 13. Signs or observations that show something has happened
  7. 15. A change that can be changed back to the original substance or state
  8. 16. The amount of mass in a certain volume of a substance
  9. 17. The way particles move or vibrate
  10. 18. The change of state from a liquid to a solid when heated
Down
  1. 1. To identify similarities and differences between two or more things
  2. 2. To move to the bottom of a liquid because the object is denser than the liquid
  3. 3. The process where a liquid changes into a gas throughout the liquid when heated
  4. 4. To stay on the surface of a liquid because the object is less dense than the liquid
  5. 5. The gaps between particles
  6. 7. The change of state from a gas to a liquid when cooled
  7. 9. The process where a liquid changes into a gas at the surface of the liquid
  8. 11. A simple representation used to explain or show how something works
  9. 14. A process in which substances change to form new substances