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Unit 6 - Layers of the Earth

Total questions: 40

Worksheet time: 24mins

Name
Class
Date
1.

How many layers does Earth have?

a)

1

b)

2

c)

3

d)

4

2.

What is the thinnest layer?

a)

Crust

b)

Mantle

c)

Outer Core

d)

Inner Core

3.

What is the thickest layer?

a)

Crust

b)

Mantle

c)

Outer Core

d)

Inner Core

4.

What is the coolest layer?

a)

Crust

b)

Mantle

c)

Outer Core

d)

Inner Core

5.

What is the hottest layer?

a)

Crust

b)

Mantle

c)

Outer Core

d)

Inner Core

6.

What is the densest layer?

a)

Crust

b)

Mantle

c)

Outer Core

d)

Inner Core

7.

Which layer is the only liquid layer?

a)

Crust

b)

Mantle

c)

Outer Core

d)

Inner Core

8.

Which layer is made of solid Iron and nickel?

a)

Crust

b)

Mantle

c)

Outer Core

d)

Inner Core

9.

Which layer is made of liquid iron and nickel?

a)

Crust

b)

Mantle

c)

Outer Core

d)

Inner Core

10.

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.

11.

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

12.

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

13.
Less dense materials rise to the top.
a)
True
b)
False
14.
a)
Sedimentary Rock
b)
Extrusive Igneous Rock
c)
Intrusive Igneous Rock
d)
Metamorphic Rock
15.
a)
Sedimentary Rock
b)
Extrusive Igneous Rock
c)
Intrusive Igneous Rock
d)
Metamorphic Rock
16.
a)
Sedimentary Rock
b)
Extrusive Igneous Rock
c)
Intrusive Igneous Rock
d)
Metamorphic Rock
17.
a)
Sedimentary Rock
b)
Extrusive Igneous Rock
c)
Intrusive Igneous Rock
d)
Metamorphic Rock
18.
a)
Sedimentary Rock
b)
Extrusive Igneous Rock
c)
Intrusive Igneous Rock
d)
Metamorphic Rock
19.
a)
Sedimentary Rock
b)
Extrusive Igneous Rock
c)
Intrusive Igneous Rock
d)
Metamorphic Rock
20.
Rock made from pieces of rocks (sediments)
a)
Sedimentary Rock
b)
Extrusive Igneous Rock
c)
Intrusive Igneous Rock
d)
Metamorphic Rock
21.
Only rock that contains fossils
a)
Sedimentary Rock
b)
Extrusive Igneous Rock
c)
Intrusive Igneous Rock
d)
Metamorphic Rock
22.
May have bands or ribbons
a)
Sedimentary Rock
b)
Extrusive Igneous Rock
c)
Intrusive Igneous Rock
d)
Metamorphic Rock
23.
How do geologists classify rocks?
a)
by color
b)
by grain size
c)
by chemical composition
d)
by how they form
24.

Which kind of rock forms under heat and pressure?

a)

Igneous

b)

Metamorphic

c)

Inorganic

d)

Sedimentary

25.

Which term describes how a rock's surface looks and feels?

a)

Density

b)

Streak

c)

Texture

d)

Fracture

26.

What is NOT used to categorize rocks?

a)

Color

b)

Size

c)

Texture

d)

Chemical Composition

27.

What do geologists study?

a)

Planets

b)

Rocks

c)

Animals

d)

Societies

28.

What is NOT a type of rock?

a)

Igneous

b)

Metamorphic

c)

Stone

d)

Sedimentary

29.

What characteristic do BANDED rocks have?

a)

Large grains

b)

Sandy texture

c)

Layers

d)

Large clumps of minerals

30.

People has used igneous rocks for all BUT what?

a)

Buildings

b)

Tools

c)

To eat

d)

Flooring

31.

When compacted sediments stick together and turn into rock

a)

Sedimentation

b)

Cementation

c)

Compaction

d)

Deposition

32.

Rock particles or sediments pressed together or packs down by gravity and pressure

a)

Compaction

b)

Cementation

c)

Deposition

d)

Sedimentation

33.

The unique combination of solid elements and compounds that make up a mineral

a)

Sediments

b)

Magma

c)

Rocks

d)

Mineral composition

34.

Melted, or molten rock, beneath the Earth's surface

a)

Magma

b)

Rocks

c)

Sediments

d)

Minerals

35.

Molten rock, or magma, that has reached the Earth's surface by volcanic action

a)

Magma

b)

Lava

c)

Rocks

d)

Minerals

36.

The cycle through which Earth's rocks change from one type into another over time due to various processes

a)

Rock cycle

b)

Metamorphosis

c)

Sedimentation

d)

Earth's evolution

37.
What is the primary process that turns sediments into sedimentary rocks?
a)
Organisms walking on layers of sediment, pressing particles together tightly
b)
Minerals within sediment, absorbing water, and undergoing a chemical reaction
c)
Upper layers of sediment, pressing down on lower layers of deposited sediment
d)
Magma cooling under the surface of Earth, crystallizing to form rock
38.
Metamorphic rocks are different from igneous and sedimentary rocks in that metamorphic rocks form -
a)
when liquid rock freezes into a solid.
b)
by magma rising from Earth’s core.
c)
from existing rock that has been changed.
d)
by layering minerals of different sizes.
39.
Scientists classify igneous, metamorphic, and sedimentary 
rocks based on their –
a)
shape.
b)
color.
c)
formation.
d)
usefulness.
40.
This rock started as lava that cooled and then was heated and compressed over time. What type of rock is this?
a)
Sedimentar
b)
Igneous
c)
Metamorphic

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