Across
- 2. Organic Chemistry
- 6. Bananas
- 9. Liquid metal, name of a planet
- 10. Lungs need this
- 11. Densest solid metal
- 14. Keeps pools clean
- 15. Toothpaste
Down
- 1. Salt
- 3. Most common element in the atmosphere
- 4. Formerly used as rat poison
- 5. A gas commonly mistaken for an extraterrestrial gem
- 7. Most commonly found in haematite
- 8. Fluorescence
- 12. Dense and soft metal
- 13. Hindenburg Disaster