Across
- 2. metal used in foil.(9)
- 5. most common element in the universe. (8)
- 8. lightest inert gas. (6)
- 9. element diamonds are made from. (6)
- 11. gas in WWI. (8)
- 14. component of gunpowder that smells like rotten eggs. (6)
- 15. radioactive element often used in nuclear power stations. (7)
- 17. gas used to make bright city lights. (4)
- 18. famous poison that turns your tongue black. (7)
- 19. metal used in paints, batteries, and radiation shields. (4)
- 20. element we need to breathe. (6)
Down
- 1. metal in table salt. (6)
- 3. place in the Olympics. (6)
- 4. liquid metal that was used in thermometers. (7)
- 6. common element in the earth's atmosphere. (8)
- 7. metal used in wires. (6)
- 10. metal sought after during the Klondike. (4)
- 11. important element in bones. (7)
- 12. used to make semi-conductors (computer chips). (7)
- 13. most common inert gas in the atmosphere. (5)
- 16. metal is used along with carbon to make steel. (4)