Across
- 3. The liberty is made of this metal
- 4. This metal is used to make cans
- 5. An important substance in hemoglobin
- 7. Diamond are made of ------
- 10. This element gives name to a shade of blue
- 11. A heavy metal known to damage the brain
- 12. An element beginning with Z
Down
- 1. The only element which begins with X
- 2. This gas is filled in balloons to make them rise up
- 6. Gas filled in fluorescent lamps
- 7. Chemical used to clean swimming pools
- 8. Our planets most vital gas
- 9. Rust proof metal