Matter (Phase Change)

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Across
  1. 2. positively charged particle
  2. 4. Liquid to gas
  3. 6. 2 hydrogen atoms(+), 1 oxygen atom(-)
  4. 8. A group of atoms bonded together
  5. 9. A small particle in the nucleus of the atom, with no electrical charge
  6. 11. Basic unit of matter
  7. 12. A change from one state (solid or liquid or gas) to another without a change in chemical composition
  8. 14. The degree of compactness of a substance.
Down
  1. 1. An atom's central core, containing protons and neutrons.
  2. 2. A change of matter from one form to another without a change in chemical properties
  3. 3. solid, liquid, gas, plasma
  4. 5. Amount of space occupied by an object
  5. 7. A change that occurs when one or more substances change into entirely new substances with different properties.
  6. 10. negatively charged particle
  7. 13. The change in state from a solid to a liquid