wunder beta☁️ Clouds & the Sky
Look up! Learn how fluffy clouds form and what they tell us about weather.
What you’ll learn
- Explain what clouds are made of, how they form, and how they fit into the water cycle.Clouds are tiny water droplets or ice crystals. They form when water vapor rises, cools, and condenses. Clouds are part of the water cycle and drop rain or snow when droplets grow heavy.
- Identify cumulus, stratus, and cirrus clouds and use them to guess the weather.Cumulus clouds are puffy fair-weather clouds, stratus clouds form flat gray layers with possible drizzle, and high cirrus clouds are wispy ice-crystal clouds hinting at changing weather.
Questions this course answers
What are clouds mostly made of?
Clouds are made of millions of tiny water droplets or ice crystals floating in the air.
What is the invisible gas that rises and helps form clouds?
The Sun turns water into water vapor, which rises, cools, and forms clouds.
What is the never-ending journey of water called?
The water cycle moves water from the ground to clouds and back as rain or snow.
Which clouds look like puffy cotton balls on a sunny day?
Cumulus clouds are the puffy, cotton-ball clouds often seen in fair weather.
Why are high cirrus clouds made of ice crystals?
Cirrus clouds form very high where the air is so cold that water becomes ice crystals.
A sky covered by flat gray stratus clouds often means what?
Stratus clouds spread out in gray layers and can bring drizzle or light rain.
Grounded in trusted sources
- NOAA NESDIS, "Types of Clouds" (https://www.nesdis.noaa.gov/about/k-12-education/atmosphere/types-of-clouds)
- Britannica Kids, "Cloud" (https://kids.britannica.com/students/article/cloud/273708)
- University of Illinois Extension, Tree House Weather Kids, "Cumulus, Stratus, and Cirrus" (https://web.extension.illinois.edu/treehouse/clouds.cfm)
- Ducksters, "Earth Science for Kids: Weather - Clouds" (https://www.ducksters.com/science/earth_science/clouds.php)
Every Wunder lesson is built from real, reputable sources — never invented.
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