Convection in the Mantle

Front

Which layer of the mantle is a plastic-y, flowing, solid like layer?

Back

asthenosphere

Front

Convection currents occur due to...
Options: rotation of earth and the tidal forces of the mantle's plastic like rock, differences in temperature and density in Earth's mantle, electrons moving in Earth's lithosphere, gravitational pull of the lithosphere on the asthensphere

Back

differences in temperature and density in Earth's mantle

Front

What is the likely cause of Earth's tectonic plate movement? Options: energy from the Sun, magnetic Pole Reversal, convection currents in the mantle, faults in Mountain Ranges

Back

convection currents in the mantle

Front

The diagram represents the movement of the mantle under the earth's crust. Which process is represented by the diagram? Options: rotation, conduction, radiation, convection

Back

convection

Front

Where do convection cycles happen? Options: core, mantle, crust

Back

mantle

Front

How do convection cycles in the mantle affect the crust?

Back

Crust moves in the same direction convection cycle moves.

Front

What layer of earth changes because of the convection cycle?

Back

crust

Front

When mantle material is heated by Earth's core, what happens to the molecules of the mantle?

Back

move faster and expand (spread out)

Front

When molten material is cooled in the mantle, the molecules: expand (spread out), condense (shrink together), stay the same

Back

condense (shrink together)

Front

Mantle that is more dense than the surrounding mantle will...

Back

sink down