Convection Currents in the Mantle

Convection Currents in the Mantle

By Holli McClelland

Multiple Choice

What is the heat source for convection in the mantle?

• the Crust
• the Mantle
• the Core

Multiple Choice

What is the cooling source for convection in the mantle?

• the Crust
• the Mantle
• the Core

Multiple Choice

 Where do convection currents happen in the model we are studying?

• the Crust
• the Mantle
• the Core

Multiple Choice

When molten  material is heated in the mantle it becomes

• more dense
• less dense 

Multiple Choice

When molten  material is cooled in the mantle it becomes

• more dense
• less dense 

Multiple Choice

When molten  material is heated in the mantle the molecules

• expand (spread out)
• condense (shrink together) 
• stay the same

Multiple Choice

When molten  material is cooled in the mantle the molecules

• expand (spread out)
• condense (shrink together) 
• stay the same

Multiple Choice

Molecules that are more dense than the surrounding particles will...

• rise up
• sink down
• stay put

Multiple Choice

Molecules that are less dense than the surrounding particles will...

• rise up
• sink down
• stay put

Multiple Choice

How does heat move?

• from a warmer to a cooler object

• from a cooler to a warmer object

• toward a hot object

• away from a cold object

Multiple Choice

Convection currents occur due to...

• rotation of earth

• differences in temperature and density

• electrons moving

• gravitational pull

Multiple Choice

Which of the following is one reason Earth's tectonic plates to move?

• energy from the Sun

• magnetic Pole Reversal

• convection currents in the mantle

• faults in Mountain Ranges

Multiple Choice

Convection cycles move in the mantle. How does this affect the crust?

• crust has no motion

• crust moves in random directions

• crust moves in same direction convection cycle moves

Multiple Choice

Name the type of heat transfer shown in the picture.

• convection

• conduction

• radiation