Across
- 4. Plate tectonics that slide against each other
- 7. The liquid layer outside the inner core
- 8. The largest layer of the Earth between the inner core and the asthenosphere
- 9. The layer consisting of the crust and upper mantle
- 11. Plate tectonics that separate from each other
- 12. A neutrino formed from radioactive decay
- 14. The process of the parent isotope decaying into the daughter isotope
- 15. The plastic-y layer below the crust that moves the crust with convection currents
- 16. The outer part of Earth above the water
- 17. A wave that moves through the earth that comes from an earthquake, explosion, etc.
- 18. A method that can give a relative date to an old object
- 19. The upper part of the mantle
Down
- 1. The outer part of Earth under the water
- 2. The center of Earth made mostly of solid iron
- 3. Pieces of the Earth’s crust that move around from the convection currents of the asthenosphere
- 5. A meteor that has entered Earth’s atmosphere
- 6. The result of the parent isotope’s decaying
- 10. Plate tectonics that smash into each other
- 13. A collection of radioactive chemicals that decay into the daughter isotope