Plate Tectonics

2. a slowly flowing layer of solid and melted rock in the upper mantle
4. Type of plate boundary where two plates move apart, causing magma to rise from the mantle and fill the gap
10. Type of plate boundary where two plate slide laterally past each other
12. The origin point of an earthquake
13. ___________ zone: The place where one plate is getting bent and pulled under the edge of another plate
15. Mid-ocean _________: A raised area or mountain range under the oceans formed when magma fills the space between
16. __________ scale: A 1 to 10 scale used to indicate an earthquake's intensity
20. A supercontinent that existed 225 million years ago, where the continents were joined together

1. Natural disaster which occurs as a result of "slipping" at a transform boundary
3. Layer of the earth that is divided into plates which float on top of the other layers
5. ________ plate: a large piece of the lithosphere that floats and moves on the asthenosphere
6. A dropped zone where two plates are pulling apart
7. An instrument for measuring and recording the vibrations of earthquakes
8. Type of plate boundary where one plate slides under another when two plates are pushed together
9. The border between two plates
11. Molten rock that flows beneath the earth's surface
14. A long, narrow, deep area on the ocean floor that is formed at a convergent plate boundary
17. A massive ocean wave caused by a sudden shift on the ocean floor
18. A crack or fracture in Earth's crust where two tectonic plates meet
19. A transference of energy