Periodic Table

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Across
  1. 4. Used in various electrical wiring.
  2. 5. Michael Phelps has 23 of these.
  3. 7. Found in a bullet.
  4. 8. America.
  5. 13. You can get a record made out of this.
  6. 15. A chevy car.
  7. 17. Has three protons.
  8. 18. What we breathe.
  9. 19. Salt
  10. 20. Makes your voice high pitched.
Down
  1. 1. Superman.
  2. 2. First element on the periodic table.
  3. 3. Found in bananas.
  4. 6. Used in the making of various vehicles.
  5. 9. A planet.
  6. 10. Put in pools to purify the water.
  7. 11. Found in some sunscreens.
  8. 12. Dimes, pennies, etc.
  9. 14. Found in milk.
  10. 16. Sn
  11. 19. Has 47 protons.