Periodic Table
Across
- 3. A coin that is five cents
- 7. Only metallic element that is liquid
- 9. Dairy is a good source of this element
- 12. Has the highest melting point of any metal
- 15. Used in some photographic flashes for high speed photography
- 16. Sounds like famous scientist who said, "Imagination is more important than knowledge"
- 18. Used in the manufacture of safety matches
- 20. Used to make control rods that are put into nuclear reactors
- 21. Atomic number is 72
Down
- 1. The medal you get when you place second in a tournament
- 2. A very bright color
- 4. The medal you get when you win a tournament
- 5. Makes our voices have a high pitch
- 6. Song sung by Sia and David Guetta
- 8. Makes drinking water safe and cleans pools
- 10. When it reacts with hydrogen it makes ammonia
- 11. What all plants breathe
- 13. Used in gunpowder, matches, fireworks, and treats skin diseases
- 14. What all animals breathe
- 17. Atomic number is 105
- 19. Salt