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 of Iron. Separated into the outer core (molten) and inner core (solid)

Question 4

Tectonic plate

Answer 4

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

Question 5

Continental drift theory

Answer 5

The theory that continents that continue gradually drifted over time to their present position(floated away)

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 hottest part of a gas or liquid rise to the top and the cooler denser parts sink at the bottom

Question 8

Convergent boundary

Answer 8

when two tectonic plates come together

Question 9

Mountains

Answer 9

uplift of crustal plats that form elevated landmases

Question 10

volcanoes

Answer 10

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

Question 11

divergent boundary

Answer 11

when tectonic plated split a part

Question 12

transform boundary

Answer 12

when tectonic plates slide past each other

Question 13

fault

Answer 13

breaks in the crust the movement cause seismic waves which produce earthquakes

Question 14

mid ocean ridge

Answer 14

a long ridge of underwater volcanos between two 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 continents plates.