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Layers of the Earth Worksheet v2

Last updated about 8 years ago

20 questions

Note from the author:

Worksheet on the layers of the Earth

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Question 1

1.

The green area between these two arrows is what layer of the Earth?

Crust

Mantle

Outer core

Inner core

Question 2

2.

There are two types of this layer, what are they called?

Crust and mantle

Continental crust and oceanic crust

Basalt and granite

Inner core and outer core

Question 3

3.

The crust under the continents is called continental crust. What is it made of?

Sandstone

Basalt

Diamonds

Granite

Question 4

4.

The crust under the oceans is called oceanic crust. What kind of rock is it made of?

Sandstone

Basalt

Diamonds

Granite

Question 5

5.

Which kind of crust is thicker - continental crust or oceanic crust?

Continental

Oceanic

Question 6

6.

This dotted line is the boundary between the crust and the mantle. What is it called? How deep in the Earth is it?

Mohorovicic Discontinuity

Moho & 60 miles

Moho & 60 km

Lithosphere & 100 km

Question 7

7.

The green and pink areas between these two arrows is a layer of the Earth that is actually made of parts of two other layers. What is it called?

Lithosphere

Crust

Mantle

Asthenosphere

Question 8

8.

The lithosphere floats on this layer. What is it called?

Mantle

Crust

Lithosphere

Asthenosphere

Question 9

9.

How thick is the asthenosphere?

5 km

50 km

About 150 km

150 miles

Question 10

10.

What do these two curved arrows represent?

Question 11

11.

This big long arrow shows the thickest layer of the Earth. What is the name of this layer?

Crust

Mantle

Outer Core

Inner Core

Question 12

12.

How thick is the mantle?

2867 miles

3000 km

286.7 km

2867 km

Question 13

13.

The mantle is HOT! Describe how the temperature changes as you go further down into the Earth. (Be specific - include temperatures in your answer)

Question 14

14.

Which layer of the Earth is this?

Crust

Mantle

Outer core

Inner Core

Question 15

15.

What is the outer core made of?

Iron & nickel

Nickels & dimes

Solid iron & nickel

Liquid iron & nickel

Question 16

16.

The outer core is spinning. Why is that important for life on Earth?

Question 17

17.

Which layer of the Earth is this?

Crust

Mantle

Outer core

Inner core

Question 18

18.

What are the temperatures in the inner core?

About 5000 degrees Celsius

About 5000 degrees Fahrenheit

Question 19

19.

The inner core is hot enough to melt but it can't. Explain why the inner core cannot melt.

Question 20

20.

Extra Credit! - This is the boundary between the mantle and the outer core. What is it called?

Use your model to find your answer!