This lesson includes a science experiment, which teaches how a cactus retains water. Many cacti live in harsh conditions with little rain water. Learn how they survive in the desert. 1. Click on the and watch the video: "At Home Experiment: Learn How a Cactus Retains Water" 2. Click on page two of the At Home Experiment student template and this page will be read aloud to you! 3. Click on the student response template: At Home Experiment. 4. Think about what you learned in the video. Using Seesaw's or tools draw a cactus in a desert environment. 5. Tap when you are finished.