Across
- 5. The splitting of atomic nuclei is called ___
- 8. The number of bones that sharks have
- 9. Heaviest internal organ in the human body
- 10. The largest desert in the world
- 12. The study of weather, climate, and the atmosphere
- 13. The element that Joseph Priestly
Down
- 1. Largest planet in our solar system
- 2. in 1774
- 3. What you call a volcano that is not currently erupting
- 4. The name of the process where a solid changes directly into gas
- 6. Most abundant element in the universe
- 7. What a conchologist collects
- 11. Symbol for iron on the periodic table