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Total questions: 21

Worksheet time: 10mins

Name
Class
Date
1.

What is the thinnest layer?

a)

Crust

b)

Mantle

c)

Outer Core

d)

Inner Core

2.

What is the thickest layer?

a)

Crust

b)

Mantle

c)

Outer Core

d)

Inner Core

3.

What is the coolest layer?

a)

Crust

b)

Mantle

c)

Outer Core

d)

Inner Core

4.

What is the hottest layer?

a)

Crust

b)

Mantle

c)

Outer Core

d)

Inner Core

5.

What is the densest layer?

a)

Crust

b)

Mantle

c)

Outer Core

d)

Inner Core

6.

Which layer is the only liquid layer?

a)

Crust

b)

Mantle

c)

Outer Core

d)

Inner Core

7.

Which layer is made of solid Iron and nickel?

a)

Crust

b)

Mantle

c)

Outer Core

d)

Inner Core

8.

Which layer is made of liquid iron and nickel?

a)

Crust

b)

Mantle

c)

Outer Core

d)

Inner Core

9.

What are convection currents?

a)

the cycle of heated rock or metal rising, and cooling rock or metal falling.

b)

the cycle of cooling rock or metal rising, and heated rock or metal falling.

c)

an electric current found in the mantle.

d)

and electric current found in the outer core.

10.

If we can't travel to the center of the Earth, how do we know so much about it?

a)

Seismic waves, made by earthquakes and man-made explosions

b)

special camera scopes sent through all the layers of the earth

c)

very long thermometers that can reach to the inner core

d)

super powerful x-rays

11.

Sally is researching the differences that exist in each layer of the Earth. Which of the following best describes Earth's crust?

a)

Solid, rocky

b)

Liquid, metallic

c)

Semisolid, convecting

d)

Dense, extremely hot

12.

Oceanic crust is more dense than continental crust?

a)

true

b)

false

13.

Which layer contains convection currents?

a)

outer core

b)

inner core

c)

asthenosphere

d)

lithosphere

14.

Earth’s crust can only be____________ or _______________.

a)

Volcanic & Seismic

b)

Oceanic & Continental

15.

The Lithosphere is made up of the ___________.

a)

Crust and Upper Mantle

b)

Inner and Outer Cores

c)

Outer Core and Lower Mantle

d)

Lower and Middle Mantle

16.

What is the Asthenosphere?

a)

an elastic substance on which the tectonic plates float.

b)

the air that we breathe.

c)

another name for a globe.

d)

the hard inner core

17.

As we move further into the earth layers temperature

a)

Decreases.

b)

Increases.

c)

Stays the same.

d)

Goes up and down.

18.

Why is the inner core solid?

a)

The temperature is so cold.

b)

Its made of mostly iron and nickel.

c)

The extreme pressure

d)

Its in the middle.

19.

Which layer of the earth generates earths magnetic field?

a)

Crust

b)

Outer Core

c)

Mantle

d)

Lithosphere

20.

What layer of the Earth do we live on?

a)

mantle

b)

inner core

c)

crust

d)

outer core

21.

What layer makes up 85% of the total weight of the Earth?

a)

crust

b)

mantle

c)

outer core

d)

inner core