Tectonic Plates

2. Melted rock beneath the earths surface
4. A trembling and shaking of the earths surface resulting from the sudden release of energy in the crust, either along fault lines or from volcanic activity
5. A slowly flowing layer of solid and melted rock formed by heat and pressure;
7. The border between two tectonic plates
12. A type of boundary that occurs where two plates move apart, allowing magma, or molten rock, to rise from the Earth's interior to fill in the gap. The two plates move away from each other like two conveyor belts moving in opposite directions
13. The point of origin of an earthquake
15. The layer of Earth between the core and the crust; the mantle contains the lower part of the lithosphere and all of the asthenosphere.
17. A type of boundary that occurs where one plate slides under another as the two are pushed together. If there is land at the edge of one of these plates, the ocean plate will subduct, or slide under that plate.
19. The outermost layer of the earth
20. A huge ocean wave caused by a sudden, powerful shift on the ocean floor, like an undersea earthquake, landslide, or volcanic eruption.

1. The name given to the super continent that existed more than 225 million years ago, in which the present‐day continents were joined together in one large landmass
3. The solid outer part of the earth that includes crust and upper mantle
6. A straight line of travel where data is being collected
8. A dropped zone where two tectonic plates are pulling apart.
9. Any of various instruments for measuring and recording the vibrations of earthquakes
10. openings, or vents where lava, tephra (small rocks), and steam erupt onto the Earth's surface
11. movement of the edge of one tectonic plate under another
14. A crack or fracture in Earth's crust where two tectonic plates grind past each other in a horizontal direction
16. melted rock on Earth’s surface
18. The point on earth’s surface that is vertically above the focus of an earthquake