plate tectonics

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 the core

Question 3

core

Answer 3

made up of mostly iron. seperated into the outer core (molten) and inner core (solid)

Question 4

tectonic plates

Answer 4

The layer of rock that make up the outer part of the earth including the crust and upper mantle (lithosphere)

Question 5

Continental drift theory

Answer 5

The theory that gradually drift 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 the gas rise to the top and the cooler part sinks to the bottom

Question 8

Convergent boundary

Answer 8

Two tectonic plates come together

Question 9

mountains

Answer 9

Uplift of crustal plates that form elevated landmass

Question 10

Volcano

Answer 10

A vent or fissure in earths surface through which magma and gasses are expelled

Question 11

Divergent boundary

Answer 11

When tectonic plates split apart.

Question 12

Transform boundary

Answer 12

When tectonic plates that slide pat each other

Question 13

Fault

Answer 13

Breaks i the crust. the movement causes seismic waves that cause earth quakes

Question 14

MId ocean ridge

Answer 14

A long ridge of underwater volcano of 2 diverging oceanic plates

Question 15

Subduction 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 plate