JC Geog Cpt 1 Earths Crust

The outside layer of the earth is called ______________________.

• core
• crust
• mantle
• outer core

What are the names of the two types of crust

• continental and oceanic
• ocean and upper
• lower and upper
• pizza and subway

The Earth's crust is made up of several __________ that are like puzzle pieces. 

• puzzle pieces
• crust parts
• saucers
• tectonic plates

What is a tectonic plate?

• A unknown continent
• A piece of the crust of Earth
• An ancient plate from the Aztec
• A plate that is stronger than iron.

What causes the tectonic plates to move?

• Wind
• Convection currents
• Tides
• Lava

Which of the following occurs because of convection currents?

• Tectonic plates on the crust move.
• The mantle increases in size.
• Pressure in the crust increases.
• Pressure in the crust decreases.

What causes the tectonic plates to move

• convection currents in the Core 
• Convection Currents in the mantle
• water in the oceans 
• People push them

In the mantle magma rises and sinks, this is called ______________. 

• a conduction current
• a hot spot
• a volcanic eruption
• a convection current

What is the process which suggests that the continents are carried by convection currents in the mantle

• mantle movement
• crust circulation
• break movement
• continental drift

Who developed the theory of plate tectonics?

• Alfred Punnett
• Alfred Wegner
• Charles Darwin