Science 10 Activity

3. The process of new oceanic crust forming at mid-ocean ridges. (13 letters)
4. The outermost layer of Earth. (5 letters)
7. The process where two tectonic plates move toward each other. (11 letters)
11. The solid, innermost portion of Earth’s core. (5 letters)
13. A major area in the Pacific Ocean where many earthquakes and volcanic eruptions occur. (9 letters)
14. A crack in Earth’s crust where movement has occurred. (5 letters)
15. The boundary where two plates slide past each other horizontally. (11 letters)
18. The rigid outer layer of Earth, consisting of the crust and upper mantle. (12 letters)
21. A type of rock formed through the cooling and solidification of magma or lava. (8 letters)
23. Subduction often causes these to form. (9 letters)
25. The scientific study of Earth’s physical structure and substance. (7 letters)
26. The theory that explains the movement of Earth’s lithospheric plates. (14 letters)
27. The type of boundary where two plates collide. (10 letters)
29. The process where one tectonic plate moves under another. (9 letters)
30. The process of breaking down rocks through contact with Earth’s atmosphere and water. (9 letters)

1. The hot, semi-fluid region of the mantle on which tectonic plates move. (9 letters)
2. The theory that the continents were once joined and have since drifted apart. (14 letters)
4. Circular currents in the mantle that drive plate movement. (10 letters)
5. An underwater mountain range formed by divergent boundaries. (10 letters)
6. The type of boundary where tectonic plates move apart. (11 letters)
7. The circular movement of fluid in the mantle, driving plate movement. (10 letters)
8. The innermost layer of Earth, made primarily of iron and nickel. (4 letters)
9. A type of rock formed from cooled magma or lava. (9 letters)
10. A deep valley formed at divergent boundaries. (5 letters)
12. The molten rock beneath Earth’s surface. (5 letters)
16. The layer of Earth between the crust and the core. (6 letters)
17. The type of landform created when plates collide and crumple. (9 letters)
19. The process of mountain formation, especially by tectonic plate collisions. (11 letters)
20. A type of rock formed by the accumulation of sediment. (13 letters)
22. Waves generated by earthquakes that travel through Earth’s interior. (11 letters)
24. A broad, domed volcano with gently sloping sides, formed by lava flows. (10 letters)
28. A break in Earth’s crust where blocks of the crust slide past each other. (5 letters)