Mr. Wizard demonstrates the difference between steam and water vapor to Billy using a teapot and flames. He explains that steam is the gas form of water and that we mistakenly refer to water vapor as steam in everyday conversation.
Beakman explains the phases of water and the water cycle. Then he explains how snow is made in clouds and have 6 sides and you can use a black sheet of construction paper to observe snowflakes as they fall.
Hank explains the Calvin Cycle, the light-independent reactions that occur within a plant to turn sunlight, water, and carbon dioxide into energy. The Calvin Cycle is broken down into three steps: Fixation, Reduction, and Regeneration.