The first twenty elements. By Samantha

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