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Grade - III - Science- Earth - Structure.

Total questions: 40

Worksheet time: 2hrs 50mins

Name
Class
Date
1.
The thinnest layer of the Earth is the ___________.
a)
mantle
b)
crust
c)
core
2.
What is the thickest layer of the Earth?
a)
the crust
b)
the mantle
c)
the outer core
d)
the inner core
3.
What is the core made of?
a)
steel
b)
iron 
c)
aluminum
d)
iron and nickel
4.
What is the correct order (starting from the surface) of Earth's layers?
a)
crust, outer core, inner core, mantle
b)
mantle, outer core, inner core, crust
c)
crust, mantle, outer core, inner core
d)
outer core, inner core, crust, mantle
5.
What describes the outer core?
a)
solid
b)
liquid
c)
viscous
d)
gas
6.
Which layer of the earth has the lowest temperature?
a)
Crust
b)
Mantle
c)
Outer Core
d)
Inner Core
7.
Which layer has the highest density?
a)
Crust
b)
Mantle
c)
Core
d)
All the same
8.
What layer has a solid inner part and a liquid outer part?
a)
Crust
b)
Mantle
c)
Core
d)
none
9.
True or False...You can touch only one of the Earth's layers.
a)
True
b)
False
10.
which one is hotter?
a)
the crust
b)
mantle 
c)
Inner core
11.
True or False.  The Earth's crust is made of rock
a)
True
b)
False
12.
If you traveled from the center of Earth to the surface, the pressure would...
a)
increase
b)
decrease
c)
stay the same
d)
unsure
13.
What layer is 2?
a)
Crust 
b)
Mantel
c)
Outer Core
d)
Inner Core
14.
What layer is 4?
a)
Crust
b)
Mantel
c)
Outer Core
d)
Inner Core
15.
What layer is 1?
a)
Crust
b)
Mantel
c)
Outer Core
d)
Inner Core
16.
Which part of the core is liquid metal?
a)
outer core
b)
inner core
17.
What Layer is 3?
a)
Crust
b)
Mantle
c)
Outer Core
d)
Inner Core
18.
What layer is the thickest?
a)
crust
b)
mantle
c)
inner core
d)
outer core
19.
What layer is 5?
a)
Crust
b)
Mantle
c)
Outer Core
d)
Inner Core
20.

What are earth's three main layers?

a)

Core, mantle, and surface

b)

Core, mantle, and crust

c)

Inner core, outer core, and mantle

d)

Upper mantle, lower mantle, and crust

21.
Which layer of the Earth includes the ocean floor?
a)
mantle
b)
outer core
c)
crust
d)
inner core
22.
The thickest layer of the Earth that contains hot solid rock is called __________?
a)
Core
b)
Mantle
c)
Magma
d)
Crust
23.
Label C represents what layer of the earth?
a)
Core
b)
Crust
c)
Mantel
d)
Lithosphere 
24.
Identify C
a)
Crust
b)
Mantle
c)
Outer Core
d)
Inner Core
25.
Identify A
a)
Crust
b)
Mantle
c)
Outer Core
d)
Inner Core
26.
Identify D
a)
Crust
b)
Mantle
c)
Outer Core
d)
Inner Core
27.
Identify B
a)
Crust
b)
Mantle
c)
Outer Core
d)
Inner Core
28.

Where is the earth's crust the thickest?

a)
b)
c)
d)
29.

How deep would you have to drill to reach the center of the earth?

a)

About 60,000 kilometers

b)

About 600,000 kilometers

c)

About 600 kilometers

d)

About 6,000 kilometers

30.
Which layer of Earth is located above the outer core?
a)
crust
b)
inner core
c)
mantle
d)
lithosphere
31.

What are the layers of the Earth ?

a)

mantle

b)

iron

c)

core

d)

molten rocks

e)

crust

32.

how much is the depth of the earths crust ?

a)

5–70 kilometres

b)

2 - 100 kilometres

c)

1 - 2 kilometres

d)

50,000 - 1,000,000 kilometres

33.

what is the 1rst layer of the earth ?

a)

crust

b)

mantle

c)

soil

d)

iron

e)

molten lava

34.

Which of these two layers is a solid?

a)

innercore

b)

Outercore

35.

Which layer of Earth is located above the outer core?

a)

crust

b)

inner core

c)

mantle

d)

lithosphere

36.
Temperature _____________________ as you go deeper into the earth.
a)
increases
b)
decreases
c)
goes up and down depending on the layer
d)
stays the same
37.
Pressure ______________________ as you go deeper into the Earth
a)
increases
b)
decreases 
c)
goes up or down depending on the layer
d)
stays the same
38.
Which layer of earth is composed primarily of iron and nickel?
a)
the crust 
b)
the cores
c)
the mantle
39.

What is the name of the layer labeled Area 1?

a)

outer core

b)

inner core

c)

mantle

d)

lithosphere

40.
You live, breathe, and eat on this layer.
a)
Outer Core
b)
Inner Core
c)
Mantle
d)
Crust

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