Crossword Puzzle

2. during this period Pangaea started to break into two smaller supercontinents
3. waves that can only travel through the surface of the Earth
4. mantle-core boundary
5. the process in which the crust plunges back into earth
8. where seismic waves are recorded
10. Gondwanaland and ______ are the two smaller supercontinent
13. the boundary that seperates the crust and the mantle
15. a wave that cause the most damage to structures during an earthquake
16. evidence where the rock formations in Africa line up with that in South America as if it was a mountain range
18. a Greek word which means "All Earth"
19. it is made up of solid iron and nickel

1. preserved remains or traces of organisms from the remote past
2. branch of geology that deals with the that shaprs the Earth's crust
6. destroyed at the subduction zone and melts in the mantle
7. the outermost and thinnest layer of the Earth
9. is the portion of motion of a tectonic plate that can be accounted for by its subduction
11. is the force that drives the plates to move around
12. the outermost rigid shell
14. deposits evidence that leads to the idea that Antartica once experienced a tropical climate
17. he proposed the Seafloor Spreading together with Dietz