Question 1

A force that acts on rock to change its shape or volume

Accepted Answer

stress

Question 2

Stress that stretches rock so that it becomes thinner in the middle

Accepted Answer

tension

Question 3

Stress that squeezes rock until it folds or breaks

Accepted Answer

Compression

Question 4

stress that pushes masses of rock in opposite directions, in a sideways movement

Accepted Answer

Shearing

Question 5

A break in the earth's crust

Accepted Answer

fault

Question 6

The shaking that results from the movement of rock beneath Earth's surface.

Accepted Answer

earthquake

Question 7

A giant wave usually caused by an earthquake beneath the ocean floor.

Accepted Answer

Tsunami

Question 8

The measurement of an earthquake's strength based on seismic waves and movement along faults.

Accepted Answer

magnitude

Question 9

A weak spot in the crust where magma has come to the surface

Accepted Answer

volcano

Question 10

A molten mixture of rock-forming substances, gases, and water from the mantle

Accepted Answer

Magma

Question 11

Liquid magma that reaches the surface; also the rock formed when liquid lava hardens.

Accepted Answer

Lava

Question 12

An area where magma from deep within the mantle melts through the crust above it

Accepted Answer

hot spot

Question 13

term that typically describes a volcano that is no longer active or unlikely to erupt again

Accepted Answer

extinct

Question 14

term used to describe a volcano that is not currently active but able to become active in the future

Accepted Answer

dormant

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