$15-$25

   

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  1. Crystal Chemistry Garden
    New

    Crystal Chemistry Garden

    $24.95

    Craft a colorful chemis-tree and garden using felt shapes and liquid watercolors. Then concoct a chemical solution that'll make your garden grow fun and funky crystals over two days, and learn the science behind them!
  2. Pinball Machine

    $24.95

    Design the board, launch, and play, all while discovering pinball game physics!
  3. 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.
  4. Rainbow Optics

    $24.95

    Create a color-mixing light jar, project colorful shadows, and play with rainbow glasses to learn about rainbow optics!
  5. Fun with Flight

    $24.95

    Build a rocket launcher and a set of your own flying rockets. Make a kite and run around to watch it fly.
  6. Speedy Race Cars

    $15.95

    Create a custom speedy race car and use black washi tape to create a speedway on any surface.
  7. Chalkboard & Glow Slime

    $22.95

    Stretch your chemistry and doodling muscles and mix two kinds of slime with this hands-on kit — jet-black chalkboard slime and glow-in-the-dark slime
  8. Combination Vault
    New

    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.
  9. Robots and Coding
    New

    Robots and Coding

    $24.95

    Build and decorate your own friendly robot buddy. Create a robot rabbit with a customizable track to run along. Write programs to solve puzzles and send your robot along a path.
  10. Marble Timer

    $24.95

    Construct a marble-powered mechanism that helps keeps time! Experiment with your timer and design new paths to help the marbles run faster, slower, and everything in between. Then time yourself while creating colorful dip-dye wood art.

   

Showing 1 to 10 of 82

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