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Earth's Interior

Total questions: 19

Worksheet time: 10mins

Name
Class
Date
1.

True or False: Scientists have been able to make observations beneath Earth's crust.

a)

TRUE:

Those observations come from seismic waves

b)

TRUE:

Those observations come from rock samples of the asthenosphere

c)

FALSE:

Scientists have not been able to take samples beneath Earth's crust

d)

FALSE:

Scientists can only make guesses about Earth's interior

2.

Select all that are true about P-waves

a)

P stands for primary

b)

They are slower than S waves

c)

They travel as longitudinal waves

d)

They cannot travel through liquids

3.

Select all that are true about s-waves

a)

They are slower than P waves

b)

S stands for stationary

c)

They travel as transverse waves

d)

They cannot travel through liquids

4.

How many major layers are there in Earth's interior?

a)

2

b)

3

c)

4

d)

6

5.

What is Earth's inner core like? Select all that are true:

a)

Solid metal ball

b)

About as hot as the surface of the sun

c)

Intensely pressurized

d)

pretty dangerous, lots of weird fungi and dinosaurs, don't recommend for vacation.

6.

Scientists know that Earth's outer core is liquid because....

a)

P-waves can't travel through it

b)

S-waves can't travel through it

c)

They are just guessing

d)

They've taken direct samples

7.

What is the most common element in earth's inner and outer core?

a)

iron

b)

hydrogen

c)

potassium

d)

gold

8.

Which layer of Earth's interior generates its magnetic field?

a)

Mantle

b)

Crust

c)

Outer core

d)

Inner core

9.

This layer is solid to semi-solid and is slowly circulating because of convection

a)

Mantle

b)

Crust

c)

Inner core

d)

Outer core

10.

The asthenosphere has a consistency much like...

a)

Sand on the beach

b)

Canola oil

c)

Carmel candy

d)

Melted chocolate

11.

Which of Earth's layers is defined as thin & brittle?

a)

Crust

b)

Mantle

c)

Inner core

d)

Outer core

12.

Which layer of the Earth can be described as "plastic and flowing"?

a)

Asthenosphere

b)

Inner core

c)

outer core

d)

crust

13.

Where do Earthquakes occur?

a)

At the boundary between tectonic plates

b)

Randomly across the crust

c)

In the center of tectonic plates where there is the most mass

d)

Under cities with heavy buildings

14.

What kind of waves are seismic waves?

a)

Kinetic

b)

Mechanical

c)

Electromagnetic

d)

Elastic

15.

What would happen if a p-wave were to pass from a solid to a liquid?

a)

It would slow down because the molecules are spaced further apart.

b)

It would speed up because it has more room to move between molecules.

c)

It would stop because p-waves can't pass through liquids.

d)

It would maintain a constant speed.

16.

What would happen if an s-wave were to pass from a solid to a liquid?

a)

It would slow down because the molecules are spaced further apart.

b)

It would speed up because it has more room to move between molecules.

c)

It would stop because s-waves can't pass through liquids.

d)

It would maintain a constant speed.

17.
How are scientist able to estimate the thickness of each layer of the Earth?By studying __________
a)
 radio waves
b)
sonar waves
c)
laser waves
d)
seismic waves
18.
This is the plastic layer of the mantle on which pieces of the lithosphere move.
a)
Lithosphere
b)
Asthenosphere
c)
Mesosphere
d)
Crust
19.
This layer is divided into pieces called tectonic plates.
a)
Mesosphere
b)
Asthenosphere
c)
Mantle
d)
Lithosphere