My crossword ♦♣♠♥→Chimin

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Across
  1. 3. all substances made by this small particles
  2. 4. First element in periodic table
  3. 7. The substances produced when two or more elements combine in chemical reaction
  4. 9. Element that name like Albert Einstein
Down
  1. 1. Symbol is Fe
  2. 2. Compound of Hydrogen and oxygen
  3. 4. First element in the periodic table
  4. 5. Symbol of Gold
  5. 6. Second element in periodic table
  6. 8. One way to make chemical reaction that use heat