crossword

3. plate section of the earth’s crust that moves about on earth’s surface Down
5. layer of “plastic” semi solid rock in the lower mantle on which earths tectonic plates move Across
7. wave longitudinal seismic wave that travels fats through earth Down
9. wave: seismic wave that travels along the surface of the earth in the crust Across
11. a place where extremely hot material from inside earth erupts at the surface Down
12. earths outermost solid layer Down
15. arc chain of islands formed at the edges of colliding tectonic plates where one plate subducts Down
17. a depression in the earths floor Across
18. molten rock that has erupted onto earth’s surface Across
19. the earths centre Across

1. point on earth’s surface directly above the focus of an earthquake Down
2. name for the crust and upper mantle together earths tectonic plates Down
4. huge wave in the ocean caused by an earthquake occurring on the sea floor Across
6. pull: plates are pulled apart at the mid ocean ridges Across
8. molten rock below earth’s surface Across
9. when one plate sinks below another plate during a collision Down
10. the place below ground where an earthquake Across
13. layer beneath earth’s crust Across
14. the process of the continents breaking up allowing in water from the sea Down
16. crust the crust that forms the ocean floor Down