Science

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Across
  1. 2. used in party balloons, airships, etc
  2. 5. number 11 of the periodic table
  3. 7. when non-metals or metal react with oXygen forms?
  4. 8. the process when a gas turns into a solid
  5. 12. to make rubber harder for use as tyres
  6. 13. when a liquid turns into a solid
  7. 14. is the process by which large particles settle at the bottom of a container
  8. 15. The person who made this
Down
  1. 1. color for cesium
  2. 3. A liquid that does not dissolve in a solvent is?
  3. 4. has a definite mass and a definite shape
  4. 6. one of the elements in the periodic table from 10-20
  5. 9. patina
  6. 10. different from Dissolving
  7. 11. the reactants are at the left of a word equation and on the right is?
  8. 12. one way to speed up rusting