Across
- 4. Used in The Simpsons
- 5. The first on the staircase as a metalloid
- 6. sounds like America
- 8. Found in bananas
- 10. named after Einstein
- 14. Pool cleanser
- 16. Needed for your bones
- 17. Atomic weight of 24.305
- 19. ______ dioxide
- 20. In your blood
- 21. You breathe it
- 22. bright colored lights
Down
- 1. sounds like California
- 2. sounds like France
- 3. Superman's weakness
- 7. Like the coin
- 9. known as salt
- 11. Used in wires
- 12. foil
- 13. 7 protons
- 15. only element on the left of the staircase
- 18. Jewelry is often made of this