The particle theory and much more!

1234567891011121314
Across
  1. 3. A pure material that appears on the periodic table.
  2. 5. A state of matter where the particles are ordered.
  3. 7. The process of turning a gas to a liquid.
  4. 8. A state of matter where the particles are fairly close but not ordered.
  5. 10. The process of turning a liquid to a gas.
  6. 12. A mix of elements and compounds.
  7. 14. Two or more elements chemically bonded together.
Down
  1. 1. It was thought to be an element, but we now know it is a compound.
  2. 2. The name of the process of turning a liquid into a solid.
  3. 4. A person who tries to make gold using water, air, earth and fire.
  4. 6. Hydrogen, Helium, Lithium, ?, Boron ...
  5. 7. A compound that cannot be turned into a liquid.
  6. 9. A state of matter where the particles are very far apart.
  7. 11. It was thought to be an element, but we now know it is a mixture of elements including Nitrogen.
  8. 13. The tenth element of the periodic table.