Across
- 2. element number 88
- 5. used in pennies
- 6. found in bones
- 9. used in baseball bats
- 11. first element on the periodic table
- 12. used in glow sticks
- 13. Symbol O
- 14. symbol B
- 15. found in batteries
- 16. used in balloons
Down
- 1. found in toothpaste
- 3. only metal that's liquid at room temperature
- 4. found in salt
- 7. metal with atomic number 64
- 8. Most common gas in our Air
- 10. It's used for supplements