One way clouds form is when Earth's surface is warmed by sunlight, then warm air rises and cools to form clouds.
Resource Type: Images
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Resource Type: Images
Make a fortune-teller style hand-held game to test your cloud knowledge.
Resource Type: Activities
Clouds are made of water. Use common items from around the house to make a simple model of a cloud in jar.
Resource Type: Activities
Learn about clouds in the sky with our portable Field Guide to Clouds.
Clouds are made of water or ice crystals, but how do they form? Learn more about cloud formation and when it’s likely to happen
Resource Type: Videos
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Resource Type: Images
An experiment that demonstrates why there are clouds in the sky. Start with air, invisible water vapor, particles we call condensation nuclei, and air pressure...the cloud comes later!
Resource Type: Activities
How do clouds impact the climate? And how will climate change impact evaporation and precipitation? Discover how rising global temperatures are likely to accelerate evaporation and increase rainfall, but not everywhere.
Did you know that there are three different types of lightning? How does lightning form, and how does it lead to thunder?
Resource Type: Information