PLATE PLATE TECTONICS TECTONICS

Question 1

crust

Answer 1

the outermost shell of a rocky planet.

Question 2

mantle

Answer 2

layer of between the crust and core

Question 3

core

Answer 3

made up of mostly iron separated into outer core (molten) and inner core (solid

Question 4

tectonic plate

Answer 4

the layer of rock that makes up the outer part of the earth, including the crust and upper mantle (lithospheric plates )

Question 5

continental drift theory

Answer 5

the theory that continents gradually drifted over time to their present positions.

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 parts of a gas or liquid rise to the top and the cooler, denser parts sink.

Question 8

covboundary

Answer 8

when two tectonic plates come together.

Question 9

transform boundary

Answer 9

when tectonic plates slide past each other.

Question 10

mountains

Answer 10

uplift of crustal plates that form landmasses

Question 11

volcanoes

Answer 11

A vent or fissure in earth’s surface through which magma.

Question 12

mid-ocean ridge

Answer 12

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

Question 13

divergent boundary

Answer 13

when tectonic plates split apart.

Question 14

fault

Answer 14

breaks in the crust. the movement cau

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 plates.