Plate Tectonics Vocabulary

Question 1

Crust

Answer 1

the outermost shell of a rocky planet.

Question 2

Mantle

Answer 2

layer of molten rock between the. crust and core.

Question 3

Core

Answer 3

Made up of mostly Iron. Separated into the outer core and inner core

Question 4

Tectonic plate

Answer 4

The layer of rock that makes up the outer part of the earth. including the crust and upper inclued

Question 5

Continental Drift Theory

Answer 5

The theory That continents gradually drifted over time to their present position.

Question 6

Asthenosphere

Answer 6

A thin layer of earth. about 150 miles thick, at the border and the crust.

Question 7

convection currents

Answer 7

The process in which the hotter parts of a gas or liquid rise cooler, denser parts sink

Question 8

convergent boundary

Answer 8

when two tectonic plates come together.

Question 9

mountains

Answer 9

uplift of crustal plates that form elevated landmasses.

Question 10

volcanoes

Answer 10

A vent or fissure in earths surface though

Question 11

divergent boundary

Answer 11

When tectonic plates split apart.

Question 12

transform boundary

Answer 12

When tectonic plates slide past each other.

Question 13

fault

Answer 13

Breaks in the crust. The movement cause semismic waves which produce earthquakes

Question 14

fault

Answer 14

Breaks in the crust. The movement cause seismic waves which produce earthquakes

Question 15

mid ocean ridge

Answer 15

a long ridge of underwater volcanoes between two diverging oceanic plates.

Question 16

subduction zone

Answer 16

A place where one tectonic plate sinks under another and melts. Also forms a trench.

Question 17

rift valley

Answer 17

A long narrow valley between two diverging continental plates.