Clouds And How They Form How do the water droplets and ice crystals that make up clouds get into the sky? And why do different types of clouds form? Cloud Types Clouds are given different names based on their shape and their height in the sky. View a table to learn about each cloud type and how they are grouped Cloud Image Gallery Photos of various types of clouds and diagrams to help you understand clouds. Cloud Sorting Game Sort photos of clouds by altitude, by composition, and into groups based on whether they are smooth or turbulent. Clouds, A Teaching Box A collection of educational resources to bring cloud science to elementary students. Clouds Memory Game Test your memory while you learn about clouds! Click on tiles to reveal photos of clouds - and try to find a matching pair.