G7 Chapter 5

Question 1

the process by which new oceanic crust forms along a mid-ocean ridge and older oceanic crust moves away from the ridge.

Accepted Answer

sea floor spreading

Question 2

the denser plate sinks below the more buoyant plate.

Accepted Answer

subduction

Question 3

the solid layer of Earth’s mantle below the lithosphere that is so hot it behaves like a plastic material.

Accepted Answer

asthenosphere

Question 4

the principle that in undisturbed rock layers, the oldest rocks are on the bottom.

Accepted Answer

superposition

Question 5

forms where two plates collide.

Accepted Answer

convergent plate boundary

Question 6

the vibrations in the ground that result from the movement along breaks in Earth's lithosphere

Accepted Answer

earthquake

Question 7

Earth's magnetic field reverses direction.

Accepted Answer

magnetic reversal

Question 8

the preserved remains or evidence of past living organisms.

Accepted Answer

fossils

Question 9

the rigid outermost layer of Earth that includes the uppermost mantle and crust.

Accepted Answer

lithosphere

Question 10

hypothesis which suggests that continents are in constant motion on the surface of Earth.

Accepted Answer

continental drift

Question 11

the mountain ranges in the middle of the oceans.

Accepted Answer

mid-ocean ridges

Question 12

theory that Earth’s surface is broken into large, rigid pieces that move with respect to each other.

Accepted Answer

plate tectonics

Question 13

the boundary between two plates that move away from each other.

Accepted Answer

divergent plate boundary

Question 14

forms where two plates slide past each other.

Accepted Answer

transform plate boundary

Questions 14