Air
Moving Air
Clouds
The Water Cycle
Seasons
100
This is what makes up air.
What is matter?
100
The name for the movement of air.
What is wind?
100
These white, fluffy clouds indicate nice weather.
What are cumulus?
100
This is a name for water that falls to the ground in any form.
What is precipitation?
100
When it is winter in the Southern Hemisphere, it is this season in the Northern Hemisphere.
What is summer?
200
This gas makes up about 76 percent of air.
What is nitrogen?
200
This device measures wind speed.
What is an anemometer?
200
These clouds form in flat, gray layers and predict rainy weather.
What are stratus clouds?
200
Water in the form of a gas is referred to as this.
What is water vapor?
200
This is the name of the imaginary line that runs from the North Pole to the South Pole.
What is the earth's axis?
300
This by-product of our need to breathe is absorbed and used by plants.
What is carbon dioxide?
300
These are the most violent storms on earth.
What are tornadoes?
300
This Latin word means "rain".
What is nimbus?
300
This stage of the water cycle occurs when water changes from a liquid to a gas.
What is evaporation?
300
This imaginary line marks the separation between the Northern and Southern hemispheres.
What is the equator?
400
This is why our planet is warm enough to live on.
What is the greenhouse effect?
400
This device points in the direction the wind is coming from.
What is a wind vane?
400
Clouds form during this process of the water cycle.
What is condensation?
400
During this stage, water cools and changes from a gas to a liquid again. Clouds can form at this stage.
What is condensation?
400
It is this season in the Northern Hemisphere when the Earth tilts away from the sun.
What is winter?
500
This is the layer of the atmosphere in which we live.
What is the troposphere?
500
This device points in the direction the wind is blowing.
What is a windsock?
500
Clouds at ground level are called this.
What is fog?
500
This is the name for the amount of water vapor in the air.
What is humidity?
500
These days fall around December 21 and June 21. They are the shortest and longest days of the year.
What are the summer and winter solstices?
M
e
n
u