$15-$25

   

Showing 1 to 10 of 96

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  1. Santa's Light-Up Workshop

    $24.95 $22.95

    Construct a wooden workshop for Santa and his little elves with this light-up, buildable workshop. Customize it with colorful beads and pipecleaners to create a unique look of your own.
  2. Crystal Chemistry Tree

    $22.95 $20.95

    'Plant' and decorate a tree with ornaments and ribbons. Add ammonia, bluing, and table salt to the planter, and watch snowy crystals appear on the branches overnight!
  3. Santa's Sleigh Automaton

    $24.95

    Help Santa and his reindeer soar through the night sky by engineering a hand-cranked automaton. Learn about cranks, cams, and rotary motion while designing a wintry nighttime scene.
  4. Ice Skating Rink
    New

    Ice Skating Rink

    $24.95

    Learn to tinker with gears and rig up a motor, then decorate a unique winter wonderland scene complete with festive characters. Turn the motor on to make the gears rotate, then watch your snowman, penguin, and gingerbread man spin around and "skate" on the ice!
  5. Walking Robot

    $24.95

    Build a walking robot and experiment with mechanical motion!
  6. Rainforest

    $24.95 $20.95

    Transform a caterpillar puppet into a butterfly, build a rainstick, and play a stacking tree game.
  7. Mechanical Sweeper

    $24.95

    Build a vacuum cleaner-like sweeper with moving parts that can be used to pick small items. Learn how salt and water react with vibrant watercolor painting.
  8. Light-Up Lantern

    $22.95

    Puzzle together the pieces of an LED-powered lantern, fit for any budding explorer. Sharpen your spatial reasoning skills while crafting with wood, foam, and fabric.
  9. Cannonball Launcher

    $24.95

    Build a launcher that uses elastic power to shoot foam cannonballs. Contains everything you need to build a working launcher and matching mount.
  10. Hydraulic Claw

    $24.95

    Construct your own lifting claw and learn how hydraulic systems work. Continue the experimentation with bonus design challenges.

   

Showing 1 to 10 of 96

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5