The Water Cycle
After it rains, what is the water called on Earth's surface?
runoff
What is the amount of water vapor in the air?
Humidity
What kind of air mass forms over tropical waters that have been heated by the sun?
Warm and moist
What is an electric discharge that happens between a positively charged area and a negatively charged area?
Lightning
What are the 3 main climate zones?
Tropical, temperate, polar
What is a plants main role in the water cycle?
Transpiration
What is a measure of the force with which air molecules push on a surface?
Air pressure
What factor is responsible for the warmer temperatures in the middle of the day?
The sun
What is a destructive, funnel-shaped cloud?
Tornado
What forms when the roof of a cave collapses?
A sinkhole
How does water vapor enter the atmosphere?
Evaporation
What two factors can affect visibility?
Pollution and fog
Which is denser, cool air or warm air?
Cool air
Where do hurricanes typically form?
Over warm ocean water
What two main factors determine climate?
Temperature and precipitation
What is a form of water that falls from clouds?
Precipitation
As you rise upwards in the atmosphere, what happens to air pressure?
It decreases
What is the boundary that forms between two different air masses?
A front
Why should you avoid crossing a flooded road?
Flood waters move rapidly and you could be swept away
What affects the amount of solar energy an area receives?
Latitude
What is the temperature at which water condenses?
Dew point
Wind moves from __ pressure areas to __ pressure areas.
High pressure areas to low pressure areas
What type of front happens when a cold air mass and a warm air mass stop moving?
A stationary front
Why does Florida have so many hurricanes?
It is located near warm oceans
How do ocean currents affect climate?
By carrying warm water to cool areas and cool water to warm areas; helps moderate temperatures