Across
- 2. Rigid outer part of Earth; physical layer
- 5. Second layer of earth
- 6. Where convection happens in earth
- 9. The original isotope
- 10. The second isotope
- 13. very inside of Earth
- 14. When plates converge; makes mountains
- 15. when plates slide against eachother
- 17. part of mantle, flows like molten plastic, still solid
- 19. the third and coldest layer of Earth's atmosphere
- 20. Thicker, older crust; basalt
Down
- 1. When you date something based off it's radiation
- 3. waves made by earthquakes or explosions
- 4. Thinner, younger crust; granite
- 7. a space rock that has entered the atmosphere
- 8. Emission of energy as ionizing radiation
- 11. The "plates" that continents float on
- 12. When plates move away from each other; makes valleys
- 16. liquid core
- 18. its just geoneutrino idk