8.10A Convection Currents

Front

What causes convection currents in the Earth’s mantle?

Back

Less dense hot magma moving upward.

Front

How does heat flow in the oceans and the atmosphere?

Back

Cool flows down – warm flows up.

Front

What is the result of air rising above the Earth’s surface?

Back

It creates a low pressure area.

Front

What process heats the air directly above the Earth?

Back

Conduction.

Front

What type of energy transfer occurs in convection currents?

Back

Heat.

Front

Define convection currents.

Back

Convection currents are the movement of fluid caused by the transfer of heat, resulting in the circulation of the fluid.

Front

What is the role of density in convection currents?

Back

Less dense fluids rise while more dense fluids sink, creating a cycle.

Front

Explain the difference between conduction and convection.

Back

Conduction is the transfer of heat through direct contact, while convection is the transfer of heat through the movement of fluids.

Front

What is the primary driver of convection currents in the atmosphere?

Back

The uneven heating of the Earth's surface by the sun.

Front

How do convection currents affect weather patterns?

Back

They contribute to the formation of wind and weather systems.