plate tectonics

Question 1

crust

Answer 1

the outermost shell of a rocky planet

Question 2

mantle

Answer 2

Layers of molten rock between the crust and core

Question 3

core

Answer 3

made up of lron. separated into the outer core molten and inner core solid

Question 4

tectonic plant

Answer 4

The layer of rock that make up the outer part of the earth including the crust and upper mantle lithospheric plates.

Question 5

continental Drift theory

Answer 5

the theory 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 between the mantle and the crust .

Question 7

convection current

Answer 7

the process in which the hotter part of a gas or liquid rise to the top and the cooler denser parts sink down .

Question 8

convergent boundary

Answer 8

when two tectonic plates come together slowly.

Question 9

mountains

Answer 9

uplift of crustal plates that elevated landmasses.

Question 10

volcanoes

Answer 10

A vent or fissure in Earths surface through which magma and gases are expelled

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 cusses seismic waves which produces earthquakes

Question 14

mid ocean ridge

Answer 14

A long ridge of underwater volcanoes between two diverging oceanic plates

Question 15

subsection zone

Answer 15

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

Question 16

rift valley

Answer 16

A long narrow valley between two diverging continental plates.