Earth Structure, Tectonics Quiz

2. The Andes mountains are formed at the margin of the South American and ______ plates.
5. The name of the solid center of the Earth.
8. Type of plate boundary where new crust is formed as plates separate.
9. The Earth is around 4 __________ years old.
10. The Earth's mantle is so hot that it is ___________.
13. These events occur mainly on destructive and conservative plate boundaries.
14. The location of origin of an earthquake at the surface is known as the ____________.
17. The center of the Earth is _________ than the surface due to radioactivity and outward cooling.
18. The solid surface of the Earth is called __________.
19. At a conservative plate boundary, plates may move in the same direction at a different ________.

1. A 7 magnitude earthquakes is ___________ times greater than a 6 magnitude earthquake.
3. The process that transfers heat outwards from the center of the Earth is called _______.
4. These plates are NOT normally involved in a collision boundary.
6. Type of plate boundary where subduction zones happen.
7. These mountains are formed at the margin of the Indo-Australian and Eurasian plates.
11. the gradual movement of plates around the Earth's surface is known as continental _____
12. The name given to molten rock in the Earth´s mantle.
15. A buildup of ____________ makes destructive boundaries´earthquakes and volcanoes normally more violent.
16. The name of the scale to measure earthquake magnitude.