Across
- 1. Used to clean pools
- 4. Has the chemical symbol of Xe
- 8. What trees release
- 9. Named after the state California
- 11. Found in bananas
- 12. Found in milk
- 17. The sixth element in the second group
- 18. Poisonous element found in batteries
- 20. Has the chemical symbol of Au
Down
- 2. Really bright colors
- 3. Has the atomic mass of 223
- 5. A coin was named after this metal
- 6. Found in your blood
- 7. Has the atomic number of 66
- 10. 6 letter element located in the same family as iron
- 13. Used to kill rats
- 14. Good conductor of electricity
- 15. found inside balloons
- 16. Found in salt
- 19. Really expensive element used to make jewelry