Topic 7: Movement in Earth's Mantle and Convection Currents

_______ is a form of energy that flows.

Heat transfers from ​ (a)   at a ​ (b)   temperature to matter at a lower ​ (c)   .

• matter
• higher
• temperature

The process of heat in the mantle drives a process called

Convection is how ​ (a)   and ​ (b)   cycle through Earth's interior as well as its surface.

• matter
• energy

As heated water expands, its density

Less-dense fluids flow up through ______ fluids

Heat from the ​ (a)   and ​ (b)   itself drives ​ (c)   currents.

• core
• mantle
• convection

Reorder the following

• convection currents carry hot, solid rock of the mantle outward

• cooled, solid rock is carried inward in a never ending cycle

• oceanic lithosphere cools and sinks, driving a pattern of mantle convection

• the cold lithosphere moves down into

  the mantle, where it is heated

• an upward return flow of hot rock completes the cycle.

Convection currents are involved in the production of ___ ______ at Earth's surface.

What process causes convection currents to form in a hot spring?