8th Grade: Ch. 7: Plate Tectonics

Question 1

The name pangaea means _________________.

Accepted Answer

"All land"

Question 2

The theory that Earth's crust and upper mantle are in sections that move is called plate _____.

Accepted Answer

Tectonics

Question 3

Chapter 7 is all about_______________________.

Accepted Answer

Plate Tectonics

Question 4

Continental plates move on the plastic-like layer of Earth's surface called the ______________.

Accepted Answer

Asthenosphere

Question 5

Oceanic plates are pushed down into the upper mantle in _______________________.

Accepted Answer

Subduction Zones

Question 6

A convection current has a cycle of ________________________.

Accepted Answer

All of the above

Question 7

As earth's plates move apart at some boundaries, they collide at others, forming ___________.

Accepted Answer

Mountains, volcanoes, and ocean basins

Question 8

Transform plates _____________________

Accepted Answer

Slide past each other

Question 9

Earth's crust and upper mantle are broken into sections called ___________.

Accepted Answer

Plates

Question 10

Divergent plates are plates that ______________________

Accepted Answer

Pull apart

Question 11

Continental drift occurs because of ___________________.

Accepted Answer

Seafloor spreading

Question 12

The seafloor spreading theory was first proposed by __________________.

Accepted Answer

Hess

Question 13

A rift can form where two continental plates ___________________.

Accepted Answer

Diverge

Question 14

The name of the scientist who is now credited with plate tectonics theory is ______________.

Accepted Answer

Wegener

Question 15

Hot magma forced upward at mid-ocean ridges produces seafloor __________________.

Accepted Answer

Spreading

Question 16

The rocks located at mid-ocean ridges are the __________________.

Accepted Answer

Youngest

Question 17

Convergent plates _________________________

Accepted Answer

Push together

Question 18

True or False. The crust and the upper part of the mantle are called the lithosphere.

Accepted Answer

True

Question 19

The collision of one plate into another could produce ______________________.

Accepted Answer

Mountains

Question 20

Wegener's continental drift theory was based on which of the following clues______________.

Accepted Answer

All of the above

Question 21

Seafloor spreading occurs because hot, less dense material below Earth's crust is forced up.

Accepted Answer

True

Questions 21