Science Flashcard 5.1

Front

What causes cooler air to move under warm air?

Back

Cooler air is denser than warm air.

Front

What is the best title for a graphic showing how convection currents distribute thermal energy?

Back

How Convection Currents Distribute Thermal Energy

Front

What is moisture in the air called?

Back

Humidity

Front

How does adding thermal energy affect air movement?

Back

It leads to the expansion of air, making it lighter and causing it to rise.

Front

Which instrument is used to measure air pressure?

Back

Barometer

Front

What is the definition of humidity?

Back

Humidity is the amount of moisture in the air.

Front

What happens to air when it is heated?

Back

Heated air expands and becomes less dense.

Front

What is a barometer used for?

Back

A barometer is used to measure atmospheric pressure.

Front

What is the relationship between temperature and air density?

Back

As temperature increases, air density decreases.

Front

What are convection currents?

Back

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