Clouds play an important role in weather, and scientists look at clouds to understand and predict weather events and climate patterns. In this hands-on lab, learners practice classifying types of clouds, analyzing data like cloud temperature and rainfall rate, and using data to predict storms. Learners will utilize the same real-time satellite data and imagery that scientists use to analyze clouds and view hurricanes and storms. Users can click "Challenge" (and click "Guest Pass" if they do not wish to make an account) to access four activities: "Cloud Typing," "Inside a Megastorm," "Analysis and Reconstruction," and "Storm Prediction." Visitors can also jump to see all the video content from the lab by clicking "Video Library" on the page linked above, and then click "Cloud Video Quizzes" to test their knowledge. Educators may want to check out the "Educator Guide" for ideas to incorporate Cloud Lab activities into the classroom. Visitors may also want to explore some of the other NOVA labs available in the drop-down menu labeled "The Labs," which include content such as "Polar," "Exoplanet," "RNA," and "Sun." Cloud Lab was developed by PBS in partnership with the Jet Propulsion Laboratory, the Goddard Space Flight Center, the S'COOL Project, and NASA's CERES experiment.