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 core

Question 3

Core

Answer 3

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

Question 4

tectonic plates

Answer 4

the layer of a rock that makes up the outer part of the earth including the crust and upper mantle ( lithosphere plate)

Question 5

continental plate

Answer 5

the theory that continents gradually drifted over time to there 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 proceeds in which the hotter parts of gas or liquid rises to the top and the cooled and denser parts

Question 8

convergent boundary

Answer 8

when tectonic plates come together

Question 9

mountains

Answer 9

uplift of crustal plates that form elevated landmasses

Question 10

volcanos

Answer 10

a vent or fissure in earths surface that which magma an gasses are expelled

Question 11

divergent

Answer 11

when tectonic plates spit apart

Question 12

Fault

Answer 12

breaks in the crust the movement causes seismic waves which produces earthquakes

Question 13

mid ocean ride

Answer 13

a long ridge of underwater volcanoes between two diverging oceanic plates

Question 14

subduction zone

Answer 14

a place were one tectonic plate that sinks under another and melts also forms a trench

Question 15

rift valley

Answer 15

a long narrow valley between two diverging continental plates