Matter

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Across
  1. 3. An atom's central core, containing protons and neutrons.
  2. 7. Amount of space occupied by an object
  3. 8. positively charged particle
  4. 9. used to measure the volume of a liquid
  5. 12. the degree of compactness of a substance.
  6. 13. solid to gas
  7. 14. a change of matter from one form to another without a change in chemical properties
  8. 15. negatively charged particle
Down
  1. 1. Liquid to gas
  2. 2. small particle in the nucleus of the atom, with no electrical charge
  3. 4. A group of atoms bonded together
  4. 5. a lipped cylindrical glass container for laboratory use.
  5. 6. Gas to liquid
  6. 10. Basic unit of matter
  7. 11. solid, liquid, gas, plasma