3.4 Weather

Differences in air pressure cause wind.

• True

• False

As the temperature in an area increases, the air pressure ___________.

• increases

• decreases

• stays the same

As the humidity increases, air pressure _________.

• increases

• decreases

• stays the same

Which two processes cause clouds to form?

• precipitation and runoff

• transpiration and precipitation

• evaporation and condensation

• evaporation and ground water

The weather of an area is affected by the air mass that is passing over it.

• True

• False

Air pressure is measured using a(n) ________.

• hygrometer

• anemometer

• barometer

• thermometer

Dew Point is the

• temperature air cools down to reach condensation (or turn into a liquid)
• temperature where ice melts to liquid water
• temperature where ice turns directly into water vapor
• time of day when dew on the ground disappears

If the air is "saturated", that means:

• the air is full of water
• the air is partially full of water
• it's amount of water vapor in the atmosphere right now
• how much liquid water it potentially can hold

As the air temperature increases, the air's capacity for water vapor: 

• increases
• decreases
• remains the same
• is unrelated to air temperature and can either increase or decrease

What do we call a collection of millions of tiny water droplets or ice crystals? 

• Fog
• Humidity
• Clouds
• Weather