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Layers of the Earth & Convection Currents

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.
What is the heat source for convection in the mantle?
a)
the Crust
b)
the Mantle
c)
the Core
2.
What is the cooling source for convection in the mantle?
a)
the Crust
b)
the Mantle
c)
the Core
3.
 Where do convection currents happen in the model we are studying?
a)
the Crust
b)
the Mantle
c)
the Core
4.
When molten  material is cooled in the mantle it becomes
a)
more dense
b)
less dense 
5.

Select all that apply. Which of the following supports a convection current?

a)

energy build up

b)

heating/cooling of a fluid

c)

density changes

d)

force of gravity

6.

Rocky or rigid outer part of Earth consisting of the brittle crust and the top part of the upper mantle

a)

Lithosphere

b)

Oceanic Crust

c)

Continental Crust

d)

Asthenosphere

7.

Mantle convection is the very slow creeping motion of Earth’s solid silicate mantle caused by convection currents carrying heat from the interior to the planet's surface.

a)

Lithosphere

b)

Earthquake

c)

Convection Currents

d)

Core

8.

Solid, outer layer and is made of both the oceanic and continental crust.

a)

Hydrosphere

b)

Core

c)

Mantle

d)

Crust

9.

Hot fluid or semi-fluid material below or within the earth's crust from which lava and other igneous rock is formed on cooling.

a)

Convection Current

b)

Lithosphere

c)

Core

d)

Magma

10.

The very center of the Earth, and the hottest part of the planet.

a)

Outer Core

b)

Inner Core

c)

Magma

d)

Lithosphere