TITAN

123456789101112131415161718192021222324
Across
  1. 2. isolated in the 18th century
  2. 5. is toxic
  3. 7. makes up 3% of earth crust
  4. 8. 100% percent recycble
  5. 9. 10% of human mass made out of
  6. 11. is about 18% of our body
  7. 13. is used for fireworks
  8. 14. burn with a bright red color
  9. 15. only 25% of the coin nickel is actually
  10. 17. makes up 2% of the earth crust
  11. 19. is harder than steel
  12. 20. is the main component of meteorites
  13. 21. it is odorless
  14. 22. selene means moon
  15. 24. can be found in the earth vrust
Down
  1. 1. first metal to be worked by man
  2. 3. can be used for scuba diving
  3. 4. also known as limestone
  4. 6. is highly reactive
  5. 7. latin word flint-siex
  6. 10. greek word "" means new
  7. 11. it is yellowish
  8. 12. does not occur free in nature
  9. 16. twice as strong as Aluminium
  10. 18. makes 8.2% of earth crust
  11. 23. 78.1% of the air