Season 2 Episode 209 | 27m 58s
When objects are in physical contact with one another and rub together there is a molecular force that acts on them that limits their ability to move. That resistance in motion is called friction. Learn how friction affects us every day. STEM Challenge: make a hovercraft from a compact disc.
Aired: 02/15/16Video has closed captioning.
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Michigan STEM Partnership, Rollin M. Gerstacker Foundation, TechSmith, Fifth Third Bank , The John E. Fetzer Institute Fund of the Kalamazoo Community Foundation, Capital Area District Libraries, LAFCU, Granger, My Blend - Michigan Virtual University, Michigan State University