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Best Sellers

  1. Solar Power Plus Kit

    Solar Power Plus Kit

    $79.95
    • Discover how solar cells generate electricity as you assemble solar powered vehicles
    • Assemble 22 models with 265 pieces
    • Includes 2 special solar panels
    Learn More
  2. Solar Power Kit

    Solar Power Kit

    $44.95
    - Kit includes 177 building pieces compatible with all Thames & Kosmos construction kits - Assemble 6 different solar powered models - Includes exceptional 24 page instruction book - CWIST For It! Learn More
  3. The Chaos Tower

    The Chaos Tower

    $139.95
    • Fun Physics! Includes web based learning activities
    • Winner of Parent's Choice, Teacher's Choice, and Toy-of-the-Year Awards
    • Create your own Rube Goldberg style "machine"
    • Assemble a frame of your choice and adorn it with chutes, slides, funnels, trampolines...you name it
    • The new Chaos motor driven chain lifts a ball to the top of your construction and off it goes through whatever course(s) you have set up
    • The tower has a max height of 78" and a whopping 602 pieces! Everything you need (except batteries) is included
    • CWIST For It!
    Learn More
  4. Nebula Plasma Ball
  5. Radiometer

    Radiometer

    $11.95

    A real solar engine!

    • An introduction to thermodynamics (explained below)
    • 5" high and 3" in diameter
    • four van rotor spins continuously up to 3,000 RPM

     

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  6. The World’S Simplest Motor™
  7. Rain Barrel
  8. Hand-Held Mini Bladeless Fan

    Hand-Held Mini Bladeless Fan

    $14.95

    • No visible fan blades and continuously changing color LED lights

    • Portable for use at home, at school and at the office

    • *Note: Price is for a single fan. Two fans are shown in the image above to display color changing feature.

     

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Items 1-8 of 67