Vocab Words For Unit 5

3. The low area between two or more mountains/hills.
7. The second seismic wave to reach the seismograph during an earthquake.
8. Fertile soil with clay, sand, and humus.
9. The outermost layer of rock on the Earth.
12. The upper layer of the mantle below the lithosphere; convection is believed to occur.
13. The organic component in the soil is made by decomposed leaves and other plants.
15. Wave A type of seismic wave that moves parallel with the crust; causes the ground to move in unusual ways such as moving up and down.
17. The movement of tectonic plates in which two move away from each other leading to earthquakes and magma rising and cooling to create more oceanic floor; happens in the ocean.
19. Breaking of or the causing of something breaking off.
20. The act of applying force to all sides of an object.
22. The solid outer part of Earth.
27. A layer of molten metal surrounding the inner core.
28. About 300-200 million years ago when North America, Africa, South America, and Europe were all one continent they were called______.
29. Two tectonics come together and create either a mountain or a deep sea trench.
30. An elastic like wave that goes through the Earth during an earthwuake.
31. A path along the pacific where earthquakes are common and there are many active volcanos.
32. The gradual movement of continents throughout history and time.

1. Fracture(s) between pieces of rock which allow them to move relative to each other.
2. Two tectonic plates slide past each other; lithosphere is neither created nor destroyed.
4. The layers in the Earth between the crust and core; are believed to be made out of extremely hot rock.
5. A force across the length of a medium.
6. The crust of Earth; mostly contains rocks, minerals, and dirt.
9. Stiff/firm-grained part of Earth.
10. The sideways and downward movement of a tectonic plate going under another and into the magma beneath.
11. Magma pooling to the top of the oceanic crust causing more/new areas of oceanic crust.
14. A type of heat transfer in which liquids or gases circle eachother with the hotter fluid rising and the cooler fluid falling.
16. Huge pieces of crust which make up the outer layer of Earth.
18. A very long, narrow, and usually deep ditch.
21. A mountain with vents allowing lava from the inner parts of Earth to erupt or come out.
23. Sudden violent shaking of the Earth's crust caused by the movement of tectonic plates.
24. A natural landform; caused by the collision and moving of tectonic plates.
25. An unusually massive wave caused by tremendous movement or vibrations on/in the ocean floor.
26. A dense ball of extremely hot solid metal at the center of the Earth.
28. The primary wave or first wave of an earthquake.