Across
- 1. describing something in more detail
- 4. what element has the chemical symbol Si
- 7. what element has the chemical symbol Ne
- 9. a potential danger
- 10. what element has the chemical symbol S
- 13. what element has the chemical symbol Ba
- 14. a sign that it's dangers or has its property's
- 17. what element has the chemical symbol O
- 18. what element has the chemical symbol Zn
- 19. what element has the chemical symbol Pb
- 20. what element has the chemical symbol Na
- 21. what element has the chemical symbol He
Down
- 2. what element has the chemical symbol Ni
- 3. what element has the chemical symbol Li
- 5. what element has the chemical symbol Cu
- 6. what element has the chemical symbol Fe
- 8. what element has the chemical symbol C
- 11. what element has the chemical symbol Ti
- 12. what element has the chemical symbol Ag
- 15. what element has the chemical symbol Au
- 16. what element has the chemical symbol H