matter

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Across
  1. 4. how much something weighs
  2. 5. A substance made up of Atoms
  3. 8. A substance that cannot be separated
  4. 9. particles have medium speed
  5. 10. two or more substance that are not a chemical
  6. 12. the change of state to a liquid to a solid
  7. 13. anything that has mass
  8. 15. positive charged particles in an atom
  9. 16. is an amount a thing weighs
Down
  1. 1. a form of matter
  2. 2. is the smallest unit of an element
  3. 3. the amount of space
  4. 4. the change of state from a solid to a liquid
  5. 6. the smallest atom
  6. 7. liquid to a gas
  7. 11. is A negative charge to particle
  8. 14. the particles vibrate in space