Curated OER
Clouds
Students explore the characteristics of clouds, their formation, symbols used in their identification, and the relationship of clouds to weather. The activity focuses on how they are formed and their classification.
Encyclopedia of Earth
Encyclopedia of Earth: Clouds
Explains what clouds are, how they are formed, and provides a chart listing the four main categories of clouds in the Earth's atmosphere - cirrus, nimbus, cumulus, and stratus. (Updated: July 25, 2012)
Dan Satterfield
Dan's Wild Weather Page: Clouds
Find out all about clouds and how they are formed at this site from Dan's Wild Weather Page. Nice photographs of different types of clouds enrich the site.
University of Illinois
University of Illinois Extension: Tree House Weather Kids: Clouds and Moisture: Clouds: Earth's Security Blanket
Animated resource helps young researchers understand clouds, cloud formation, and types of clouds.
Other
Old Farmer's Almanac: Identifying Clouds in the Sky
Learn what clouds are made of and how they are formed. Also learn the characteristics and view pictures of different types of clouds including cirrus, cirrocumulus, cirrostratus, altostratus, altocumulus, cumulus, cumulonimbus, stratus,...
Math Science Nucleus
Math/science Nucleus: Cloud Poem Animation
This animation, in a storybook format, tells the various types of clouds (stratus, cirrus, nimbus) through a picture poem.
Mocomi & Anibrain Digital Technologies
Mocomi: Types of Clouds
Describes the four different classifications of clouds.