element

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Across
  1. 3. Is harder than steel
  2. 4. Is recyclable
  3. 9. It boosts your immune system
  4. 10. Its cycle is one of the most important things in nature
  5. 12. Makes up 2% of the earths crust
  6. 15. Name comes from its color
  7. 16. Makes up 3% of the earths mass
  8. 17. Atomic mass is 84
  9. 18. Only makes 25% of the coin
  10. 19. The earths core is made up of it
  11. 21. Can be found in the earths crust
  12. 22. Produces light that is very similar to sunlight
  13. 24. Is twice as strong as aluminum
  14. 26. Light tubes
Down
  1. 1. Atomic mass is 31
  2. 2. Atomic weight is 28
  3. 5. Could replace precious metals in industry
  4. 6. Around 10% of the mass in the human body made up of it
  5. 7. Essential element for human nutrition
  6. 8. Atomic mass is 27
  7. 11. Lightest metal
  8. 13. Atomic mass is 31
  9. 14. Atomic mass is 19
  10. 20. Can float in water
  11. 23. Too little of it can cause harm
  12. 25. Its one of the rarest elements on earth