So how does the carbon cycle work? Kids participate in a hands-on activity that allows them to understand the chemistry behind climate change and global warming. They act out the process of photosynthesis by labeling themselves as chemicals moving in and out of a plant. They form chemical bonds by linking arms to create different molecules that change from carbon dioxide to oxygen. To evaluate understanding, they respond to several prompts in writing. The concrete manner in which the topic is conveyed is great for both younger and older students.