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 Videos Short video clips about clouds - including different types of clouds, where they form in the atmosphere, and their shapes. Cloud Games and Simulations Test your knowledge with one of our games or gain a deeper understanding of clouds through a simulation. Cloud Activities Discover clouds through scientific investigations of how clouds form and observation and art activities. You can even make your own portable cloud!