Reading: What are Clouds? Cassell

Front

What is a gas?

Back

A state of matter where molecules are too small and too spread apart for us to see them.

Front

What is condensation?

Back

The process where water vapor cools and changes into liquid water, typically requiring 100% relative humidity.

Front

True or False: Scientists agree that cloud seeding is highly effective in increasing cloud formation.

Back

False

Front

What is needed for condensation besides cooling humid air?

Back

A solid surface for the water vapor to condense or stick to.

Front

What are clouds made of?

Back

Gases and larger water droplets or ice crystals suspended in those gases.

Front

What is relative humidity?

Back

The amount of moisture in the air compared to the maximum amount of moisture the air can hold at a given temperature.

Front

What role do solid particles play in cloud formation?

Back

They provide a surface for water vapor to condense upon, aiding in cloud formation.

Front

What happens to air when it cools?

Back

It can lead to condensation if the air is humid enough.

Front

What is the significance of 100% relative humidity?

Back

It indicates that the air is fully saturated with moisture, allowing condensation to occur.

Front

What are ice crystals?

Back

Solid forms of water that can be found in clouds, contributing to their structure.