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Earth's Composition Test Review

Total questions: 18

Worksheet time: 36mins

Name
Class
Date
1.

Which of these best represents the Earth's structure?

a)
b)
c)
d)
2.

Which of these Earth layers is the thinnest?

a)

The inner core

b)

The outer core

c)

The mantle

d)

The crust

3.

Which is the thickest layer of Earth?

a)

The crust

b)

The inner core

c)

The mantle

d)

The outer core

4.

High temperatures inside Earth are from?

a)

Melted rock

b)

Fossils

c)

Soil

d)

Minerals

5.

The density is highest in Earth's?

a)

Crust

b)

Upper mantle

c)

Lower mantle

d)

Core

6.

Compared to rocks in Earth's crust, rocks in the mantle are more?

a)

Dense

b)

Mineral-rich

c)

Granular

d)

Porous

7.

The pie section shows Earth's composition from the center to the surface. Section IV is most likely composed of?

a)

Molten iron

b)

Granite rock

c)

Solid Iron

d)

Basalt

8.

Which layer or layers of Earth does a deep well or mine shaft go through?

a)

Crust only

b)

Mantle only

c)

Crust and mantle

d)

Mantle and core

9.

Earth's core is mainly composed of?

a)

Iron and aluminum

b)

Silicon and hydrogen

c)

Iron and nickel

d)

Silicon and oxygen

10.

The average density of one crustal plate is 2.8 g/cm^3 and the average density of an oceanic plate is 3.2 g/cm^3. If these two plates came together, what could be expected to happen?

a)

The two plates would push apart and form a rift zone

b)

The oceanic plate would rise up over the continental plate

c)

The oceanic plate would be pushed under the continental plate

d)

The two plates would meet head on and rise up to form mountains

11.

If we compare the temperature and pressure of the Earth's mantle to the core, what differences can we expect as we move downward into the Earth?

a)

Both the temperature and pressure increase

b)

Both the temperature and pressure decrease

c)

The temperature decreases and the pressure increases

d)

The temperature increases and the pressure decreases

12.

In the table, Layer C is most likely Earth's?

a)

Atmosphere

b)

Crust

c)

Mantle

d)

Core

13.

Layer A in the table has the lowest temperature and density. What part of the Earth is most likely layer A?

a)

Atmosphere

b)

Crust

c)

Mantle

d)

Core

14.

From lowest to highest temperature, which is the correct order of Earth's layers?

a)

Inner core, outer core, mantle, crust

b)

Mantle, crust, outer core, inner core

c)

Crust, mantle, outer core, inner core

d)

Crust, mantle, inner core, outer core

15.

Scientists believe the Earth's inner core to be solid. This is probably due to extremes in?

a)

Depth

b)

Density

c)

Pressure

d)

Temperature

16.

The Earth's mantle is made up of very hot material that rises to the top of the mantle, cools, then sinks, reheats, and rises again, constantly repeating the cycle. This action, which causes the Earth's crust to move is known as?

a)

Convection currents

b)

Magnetic fields

c)

Hot spots

d)

Advection forces

17.

Thermal energy transferred by circulation of a liquid or a gas is called?

a)

Thermal conduction

b)

Radiation

c)

Convection

d)

Condensation

18.

Convection currents transfer heat through?

a)

Solids and liquids

b)

Solids and gases

c)

Liquids and gases

d)

Only solids