column one
The amount that air presses on the earth is called blank
Air pressure
Rain snow and hail are all kinds of blank
Precipitation
The amount of water vapor in the air is called blank
Humidity
An area where cool air is sinking is a blank
High-pressure area
A blank is a tool that shows wind direction
Windvane
And blank is a large amount of air that has a certain temperature and humidity
Air mass
scientist use and blank to measure exact wind speed
Anemometer
The blank has weather stations all over the United States
National weather service
An area where warm air is rising is a blank
Low pressure area
A tool that measures precipitation is called a
Rain gauge
A blank studies weather
Meteorologist
Humidity in the air can be measured using a blank
Hygrometer
A blank is a tool that measures air pressure
Barometer
Two air masses meet at a line called a blank
Front
A prediction of what the weather will be like is a blank
Forecast
How is the air above the earth warmed
The light energy hits liquids and solids on the surface of the earth. The liquids and solids get warm, and they warm the air above them.
Why is air pressure lower as you go higher above the earth?
There is less pressure high above the earth because there is less air
How does hail form?
Hell forms when water freezes and gets pushed back up into a cloud by Highwinds. A layer of ice is added and it begins to fall.
Give three examples of severe weather
Possible answers thunderstorms tornadoes hurricanes floods and winter storms
How do meteorologist track and predict weather?
Meteorologist use computer generated maps, radar maps, satellites, and weather balloons to track and predict weather.
How do clouds form?
Water vapor in the air condenses and changes to tiny water drops that form clouds.
Which types of clouds might you see on a bright sunny day?
Either cirrus clouds or cumulus clouds would most likely be seen on a bright, sunny day
What tools are used to measure precipitation and humidity?
A rain gauge is used to measure rainfall and a hygrometer is used to measure humidity.
How does rain form?
Water vapor cools and forms tiny drops of water. These tiny drops freeze, becoming larger and heavier, then fall toward the earth. If the temperature is above freezing, these tiny ice crystals melt and fall as raindrops.
What determines whether rain or snow falls?
The temperature near the earths surface.