Science Crossword

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Across
  1. 2. ____ The amount of atoms in a compound
  2. 3. Compounds are always set up as a ___
  3. 4. The small number to the bottom right of an element
  4. 6. Make's up everything on earth
  5. 7. Existed before planets
  6. 9. smallest form of a compound
Down
  1. 1. The ____ number of atoms
  2. 2. Represents the number of molecules
  3. 5. Formed from different elements combined
  4. 8. Always Everywhere