Earth Science

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

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