Earth Convection Currents

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

• the Crust

• the Mantle

• the Core

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

Tags

NGSS.MS-ESS2-3

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

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

Name the type of heat transfer shown in the picture.

• convection

• conduction

• radiation

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Match each number from the diagram to the description of the event occurring at that position in the convection current.

• Heating of the cooler material

• 2

• Cooling of the warmer material

• 4

• Movement of the denser material

• 3

• Movement of the less dense material

• 1

Answer explanation

These are convection currents. Material (like magma in the mantle) is heated at the bottom of the current, becomes less dense and rises, cools at the top, becomes less dense, and sinks to the bottom, where it warms up and repeats the cycle.

Tags

NGSS.MS-ESS2-6

The cycle that powers the ocean currents, weather, and tectonic plates it called

• conduction current

• radiation

• condition current

• convection current

Tags

NGSS.MS-ESS2-6

What is a convection current?

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

What is the heat source for convection in the mantle?

• the Crust

• the Mantle

• the Core

What is the cooling source for convection in the mantle?

• the Crust

• the Mantle

• the Core

Tags

NGSS.MS-ESS2-1

When molten  material is heated in the mantle it becomes

• more dense

• less dense 

Tags

NGSS.MS-PS1-4