plate tectonic

Question 1

the outermost shell of a rocky planet

Answer 1

crust

Question 2

layer of molten rock between the crust and core

Answer 2

mantle

Question 3

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

Answer 3

core

Question 4

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

Answer 4

tectonic plate

Question 5

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

Answer 5

continental drift theory

Question 6

a thin layer of earth about 150 miles thick at the border between the mantle and the crust

Answer 6

astehenosphere

Question 7

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

Answer 7

convection current

Question 8

when two tectonic plates come together

Answer 8

convergent boundry

Question 9

uplift or crustal plates that form elevated landmasses

Answer 9

mountains

Question 10

a vent or fissure in earth surface through which magma and gases are expelled

Answer 10

volcanos

Question 11

when tectonic plates split apart.

Answer 11

divergent boundary

Question 12

when tectonic plates slide past each other.

Answer 12

transform boundary

Question 13

breaks in crust the movement causes seis

Answer 13

fault

Question 14

a long ridge of underwater volcanoes between two diverging oceanic plates

Answer 14

mid-ocean ridge

Question 15

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

Answer 15

subduction zone

Question 16

a long narrow valley between two diverging continental plates.

Answer 16

rift valley