$15-$25

   

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  1. Pulley Crane

    $24.95

    Assemble a pulley-powered crane that can spin around, raise its arm, and lift loads. Then swap pulleys in and out to see first-hand how mechanical advantage makes it easier to lift things.
  2. Walking Robot

    $24.95

    Build a walking robot and experiment with mechanical motion!
  3. Combination Vault

    $24.95

    Engineer a combination vault in which to stash your secrets, accessible by a numeric code only you know (shhh). Then learn about other sneaky spy gadgets and encryption tools, and the science behind them.
  4. Vacuum Chamber

    $24.95

    Build a vacuum chamber to conduct air pressure experiments! Pump air in and out of the chamber to see how things respond in a low pressure environment.
  5. Shake Table
    New

    Shake Table

    $24.95

    Build a motor-powered platform, complete with a spinner to make it quiver and quake. Then use foam balls and toothpicks to design a structure sturdy enough to withstand your shake table's shimmying.
  6. Mechanical Bird

    $24.95

    Engineer a model bird and experiment with gear-driven wings!
  7. Paper Airplane Launcher
    New

    Paper Airplane Launcher

    $24.95

    Engineer a paper airplane launcher, and take flight with physics! Build a runway, then rig it up with battery-powered motors to send your airplanes soaring. Learn about the history of flight, and how the forces of lift and thrust make it possible. Ready for takeoff?
  8. Zoetrope

    $24.95

    Engineer a zoetrope and learn how to turn still pictures into moving animation. When you give it a spin, the zoetrope makes a mini motion picture. Experiment with the provided sheets of images, or draw your own too!
  9. Ballista

    $24.95

    Build a ballista and experiment with aiming and launching!
  10. Phantom Projector

    $24.95

    Make your own optical illusion! Engineer a projector box in which a translucent ghost mysteriously appears with the push of a switch. Then use the blank illusion cards to make your own vanishing pictures.

   

Showing 1 to 10 of 18

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