The first twenty elements. By Samantha

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Across
  1. 2. a lot of it in cow dairy products
  2. 3. most reactive of all elements
  3. 5. Raw fueL that stars use to burn energy
  4. 9. once known as glucinum
  5. 10. produced by heating sand
  6. 14. seventh most reactive of all elements
  7. 15. used as an ignition source
  8. 16. there is a lot of it in bananas
  9. 17. the name was created by Antoine Lavoisier
  10. 18. forms many useful compounds eg. Baking soda
  11. 19. ingredient in plasma
Down
  1. 1. used in thermal pools
  2. 2. used to keep pools clean
  3. 4. discovered by boiling urine
  4. 6. used to make special glasses and ceramics
  5. 7. discovered by sir William Ramsay
  6. 8. used in cans,foil, etc.
  7. 11. used in pencil lead
  8. 12. has the lowest melting point among all the elements
  9. 13. discovered in 1772