Atoms Video

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Across
  1. 4. proton charge
  2. 6. H2O
  3. 9. contains protons and neutrons
  4. 13. in the nucleus, positive charge
  5. 14. fly around the nucleus
  6. 15. element that all life has
  7. 18. electron charge
  8. 19. aluminum and copper
  9. 20. electrons and protons have this
Down
  1. 1. in the nucleus, no charge
  2. 2. if it's not matter it's
  3. 3. what everything is made of
  4. 5. what atoms are mostly
  5. 7. one per water molecule
  6. 8. two per water molecule
  7. 10. your favorite class
  8. 11. Fe
  9. 12. combinations of atoms
  10. 16. primary building block of all matter
  11. 17. video host