General Science- Geology and Structure of Earth

Question 1

The science that deals with the history and composition of the Earth and its life, especially as recorded in rocks.

Answer 1

Geology

Question 2

The earth is made up of how many layers?

Answer 2

3

Question 3

What are the 3 layers of the earth?

Answer 3

Crust
Mantle
Core

Question 4

The outermost layer is what?

Answer 4

Crust

Question 5

What percentage of the total volume of Earth does the crust take up?

Answer 5

1%

Question 6

The crust varies in thickness between what numbers?

Answer 6

10-100 KM

Question 7

What lies beneath the crust?

Answer 7

The Mantle

Question 8

What percentage of the total volume of Earth does the Mantle take up?

Answer 8

75%

Question 9

How thick is the mantle?

Answer 9

Approximately 3,000 Kilometers

Question 10

What does the mantle mostly contain?

Answer 10

Iron
Magnesium
Calcium

Question 11

Why is the mantle hotter than Earth’s surface?

Answer 11

Because it is denser and has more pressure the deeper the depth.

Question 12

What lies at the center of the Earth?

Answer 12

The Core

Question 13

How much more dense is The Core than the Mantle

Answer 13

Twice as Dense

Question 14

What is the composition of The Core?

Answer 14

Iron/Nickel Alloy

Question 15

The Core is divided in how many parts?

Answer 15

2 - Outer & Inner

Question 16

The Outer Core is what?

Answer 16

2,200 Kilometer Thick Liquid

Question 17

The Inner Core is what?

Answer 17

1,300 Kilometer Radius Solid