Across
- 3. The element with the symbol 'Ni'
- 4. The element with the symbol 'Fe'
- 6. The element with the symbol 'Mg'
- 10. The element with the symbol 'Pb'
- 12. The element with the symbol 'O'
- 14. The element with the symbol 'Zn'
- 16. The element with the symbol 'Cu'
- 17. The element with the symbol 'Cl'
- 18. The element with the symbol 'Ag'
- 19. The element with the symbol 'K'
- 20. Everything in the universe is made from ______
Down
- 1. The element with the symbol 'Li'
- 2. The element with the symbol 'He'
- 5. The element with the symbol 'N'
- 7. The element with the symbol 'Au'
- 8. The element with the symbol 'S'
- 9. The element with the symbol 'Al'
- 11. The element with the symbol 'H'
- 13. The element with the symbol 'C'
- 15. The element with the symbol 'Na'
