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Layers of the Earth Review

Total questions: 15

Worksheet time: 11mins

Name
Class
Date
1.

Guess what? Our planet Earth isn't as young as you might think! Can you figure out its age?

a)

4.6 Billion years old

b)

2.5 Billion years old

c)

6.8 Billion years old

d)

3.2 Billion years old

2.

Guess what? The Earth's outer core is not what you might think it is! What is it actually made of?

a)

Nickel and Iron

b)

Liquid rock

c)

Solid ball of NiFe

d)

Molten lava

3.

Guess what? The Earth has layers, just like an onion! Can you tell me how thick the mantle layer is?

a)

2400 km

b)

2300 km

c)

2900 km

d)

1801 m

4.

Ready to dive deep into Earth's layers? Guess the temperature range of the mantle!

a)

7000-8000 degrees

b)

870-4400 degrees

c)

4400-6100 degrees

d)

2400 km

5.

Guess what? The top layer of the Earth's crust isn't what you might expect! What's it made of?

a)

Liquid metal

b)

Molten lava

c)

Cool rock

d)

Solid ball of NiFe

6.

Guess what? The continental crust is actually a slab of what?

a)

Liquid metal

b)

Molten lava

c)

Cool rock

d)

Solid ball of NiFe

7.

Guess what the inner core is actually made of? It's not what you might think!

a)

Molten lava

b)

Solid ball of NiFe

c)

Cool rock

d)

Liquid metal

8.

Guess what? The Earth has a secret inner core! Can you tell how wide it is?

a)

2900 km

b)

1491 mi

c)

1801 m

d)

2400 km

9.

Guess what? The outer core of our planet isn't what you might expect! What's it really made of?

a)

Solid ball of NiFe

b)

Cool rock

c)

Molten lava

d)

Liquid metal

10.

Ready to dive deep into Earth's layers? Guess the temperature range of the outer core!

a)

870-4400 degrees Celsius

b)

4400-6100 degrees Celsius

c)

7000-8000 degrees Celsius

d)

2400 km

11.

Guess what? The top layer of the Earth's crust isn't what you might expect! What's it made of?

a)

Liquid metal

b)

Cool rock

c)

Molten lava

d)

Solid ball of NiFe

12.

Label the layers of the earth

13.

Label which layer is made of Liquid Metal.

14.

Label which layer is of a solid ball of NiFe.

15.

Which of these are true about the why the inner core is solid and the outer core is liquid?

a)
The inner core is liquid due to low pressure and high temperature
b)
The outer core is solid due to low pressure and low temperature
c)
High pressure in the inner core and lower pressure and higher temperature in the outer core
d)
The inner core is solid due to low pressure and high temperature