8.10A Convection Currents

Front

What is the driving force of currents in the oceans and atmosphere?

Back

Unequal heating of the Earth by the Sun.

Front

What phenomenon is created by unequal heating of the Earth's surface?

Back

Wind.

Front

What causes convection currents in the Earth’s mantle?

Back

Less dense hot magma moving upward.

Front

How are ocean currents created?

Back

Less dense warm water rising and more dense cold water sinking.

Front

What happens to air when it is heated?

Back

It becomes less dense.

Front

Define convection currents.

Back

Convection currents are the movement of fluid caused by differences in temperature and density.

Front

What role does the Sun play in convection currents?

Back

The Sun heats the Earth's surface unevenly, creating temperature differences that drive convection currents.

Front

Explain how wind is related to convection currents.

Back

Wind is a result of convection currents in the atmosphere caused by uneven heating of the Earth's surface.

Front

What is the relationship between temperature and density in fluids?

Back

As temperature increases, density decreases; as temperature decreases, density increases.

Front

Describe the process of warm water rising and cold water sinking in oceans.

Back

Warm water is less dense and rises, while cold water is more dense and sinks, creating ocean currents.