Front

How does air warm up?

Back

Air molecules get energy from the surface of the Earth by conduction.

Front

How do cumulonimbus clouds form?

Back

Through convection. The warm air closer to the ground rises, cools off as it gets higher in the atmosphere, then sinks.

Front

What is convection?

Back

The movement of warm, less dense air rising and then sinking as it cools.

Front

How is air temperature related to altitude?

Back

The higher up, the colder it is.

Front

What type of day is hail more common?

Back

Warm, sunny day. The air at the ground is warmer and will rise to create cumulonimbus clouds.

Front

What is conduction?

Back

The transfer of heat through direct contact between materials.

Front

What is radiation?

Back

The transfer of energy through space by electromagnetic waves.

Front

What are cumulonimbus clouds?

Back

Large, towering clouds associated with thunderstorms and severe weather.

Front

What is the water cycle?

Back

The continuous movement of water on, above, and below the surface of the Earth.

Front

What is humidity?

Back

The amount of water vapor present in the air.