Across
- 2. has California in its name
- 3. very valuable
- 6. second element of the periodic table
- 7. used in pencels
- 9. is good for athletes
- 10. symbol is fe
- 12. used in coins
- 14. has the symbol of NA
- 15. 1st element
Down
- 1. atomc number is 281
- 4. put in pools
- 5. in soda and sparkling water
- 8. killed the women who worked in clock factories
- 11. used in lights
- 13. is in rocks and nature