What Are Clouds?

What did Dr. Joanne Simpson study to become the first woman to earn a PhD in?

• Astronomy

• Meteorology

• Geology

• Biology

Why did Simpson's professors encourage her to study clouds?

• Because they didn’t think women could be serious scientists and clouds seemed to them like a good unimportant subject for a woman to study.

• Because they thought it was very important to study clouds and her whole family were famous weather scientists.

What did Simpson call the gigantic clouds that looked like skyscrapers sticking up above the clouds around them?

• Hot towers

• Mega clouds

What layer of the atmosphere is closest to the Earth?

• Stratosphere

• Mesosphere

• Troposphere

• Thermosphere

What is an air parcel?

• A type of cloud

• An amount of air that moves as a unit

• A measurement of wind speed

• A type of weather phenomenon

Where does water vapor come from to form clouds?

• The sun

• The stars

• The moon

• Liquid water on Earth's surface

When liquid water gets warm enough, it turns into water vapor through a process called .....

• condensation

• evaporation

• precipitation

What is the process called when water vapor becomes liquid in air parcels?

• Precipitation

• Condensation

• Evaporation

What are all clouds made of?

• Invisible gas

• Visible droplets of water or ice crystals.

When energy in a warm air parcel is transferred to the colder air, the temperature of the air parcel ....

• increases.

• decreases.

• is not changed.