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Middle School: Earth Outer and Inner Layers

Total questions: 20

Worksheet time: 3600secs

Name
Class
Date
1.

Scientists learn about Earth’s interior from seismic waves, rocks and calculations of density and magnetism.

a)

True

b)

False

2.

Seismic waves can:

a)

Bend

b)

Behave differently in different materials

c)

Travel at different speeds

d)

All of the above

3.

Mountains and rocks are part of which of the following?

a)

Lithosphere/Geosphere

b)

Atmosphere

c)

Biosphere

d)

Hydrosphere

4.

The hydrosphere is made up of

a)

Gas

b)

Magma

c)

Water

d)

Rock

5.

The thin layer of air, mostly nitrogen and oxygen, that surrounds Earth.

a)

Atmosphere

b)

Hydrosphere

c)

Geosphere/Lithosphere

d)

Biosphere

6.

Trees, Animals and other living organisms are part of which sphere?

a)

Biosphere

b)

Atmosphere

c)

Hydrosphere

d)

Lithosphere/Geosphere

7.

The ____ is the innermost (closest to the center) layer of Earth.

a)

mantle

b)

core

c)

crust

8.

What is true about the crust?

a)

The crust is less than 1% of Earth’s mass

b)

There are two types of crust, continental and oceanic

c)

It is the outermost layer

d)

All of the above

9.

The layers of Earth from inside to out are:

a)

Core, Crust, Mantle

b)

Core, Mantle, Crust

c)

Crust, Mantle, Core

d)

Mantle, Core, Crust

10.

Which one are the 3 layers of the Earth?

a)

Crust / Mantle / Core

b)

Crust / Lithosphere / Asthenosphere

c)

Mantle / Core / Atmosphere

d)

Outer Core / Inner Core / Hydrosphere

11.

The two types of Earth's crust are oceanic and continental.

a)

True

b)

False

12.

Crust is thick relative to Earth’s radius.

a)

True

b)

False

13.

Which of these statements is true about the mantle?

a)

The mantle is extremely hot

b)

It is about 68% of Earth’s mass

c)

Mainly composed of Peridotite

d)

All of the Above

14.

This layer heats up the mantle.

a)

Crust

b)

Lithosphere

c)

Asthenosphere

d)

Core

15.

Conduction is the term for heat transferred through the rapid collision of atoms.

a)

True

b)

False

16.

Earth’s internal layer with the highest density (deepest because is heavier) is the:

a)

Oceanic crust

b)

Mantle

c)

Outer core

d)

Inner Core

17.

Scientists believe that metallic meteorites are representative of the core.

a)

True

b)

False

18.

The core is made of:

a)

Iron and nickel metal

b)

Peridotite

c)

Gabbro and basalt

d)

None of these

19.

If the Earth's core were not metal, the planet would not have a magnetic field.

a)

True

b)

False

20.

The layer of Earth, called the lithosphere, is composed of the crust and the upper portion of the mantle.

a)

True

b)

False