13:32 - 19:03
5m 31s
Beakman talks about how important oxygen is and why we need it to live. Beakman acts like Joseph Priestly to explain that oxygen is needed for us to create energy. He uses an engine and a candle as demos to explain the need for oxygen to burn fuel.
Video Transcript
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Four-year-old Brielle shares with us some facts about the human body. She covers facts about the ear, heart, intestines, lungs, and eyes. Brielle also explains why you get dizzy when you spin around.
Beakman explains how leaves lose chlorophyll using a cartoon video. Then he explains the role of chlorophlyll in photosynthesis verbally. To further demonstrate, Beakman acts like the "chef" chlorophyll that provides food for the plant.
Hank explains in-depth the series of reactions that take place for a plant to produce food for itself, also known as photosynthesis. This video also explores the prerequisites (sunlight, carbon dioxide, and water) of these reactions.
Key Words: Xylem, Stomata, Chlorophyll, Chloroplast, Thylakoid, Photoexcitation, Photosystem II, Electron Transport Chain, Cytochrome Complex, ATP
By observing the chloroplasts in a leaf, the students learn that plants produce their own food and do not get it from another source. The students come to the conclusion that the chloroplasts use sunlight, air, and water to create sugar, which is used as energy for the plant.