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Best Sellers

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Best Sellers

  1. The Chaos Tower

    The Chaos Tower

    • 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, 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!
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  2. Rock Tumblers & Polishing Kits

    Rock Tumblers & Polishing Kits


    - All inclusive kit complete with geology specimens, polishing materials, and accessories

    - Produces polished gemstones suitable for jewlery-making

    - Single barrel with 3 lb. capaciity

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  3. Levitron Anti-Gravity Globe

    Levitron Anti-Gravity Globe



    - The World rotates (and levitates) at your finger tips!

    - AC powered (adapter included)

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  4. Laser Twilight

    Laser Twilight

  5. Create thousands of stars for a private star-filled universe
  6. Measures approximately 9.4 x 10.9 x 12.3 inches ; 3.8 pounds
  7. Plugs in via a wall adapter, AC adapter included
  8. Includes built-in key hole for optional wall mounting
  9. Check out the video below!
  10. Learn More
  • Jensen Steam Engine Model Kit
  • Solid brass and nickel plated
  • Learn about mechanical energy and motion
  • Fun & easy two hour project; use for your next science fair
  • Certificate for a custom plaque included
  • Add more Esbit tablets with item 3052343
  • For a limited time this product ships for free! Learn More
  • The World Famous Floating Arm Trebuchet

    The World Famous Floating Arm Trebuchet

    • Hurl a golf ball up to 250 feet!
    • Kit includes: Pre-cut/drilled pieces and detailed instructions
    • Spark the interest of real world science and engineering (perhaps a bit of history too)
    • Test your machine's strength and efficiency with the included equations and tips as you watch classical mechanics in action
    • You provide the counter weights
    • Check out the PDF below to learn more about the kit and what you may need
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  • Parallax Boe - Bot Robot Kit

    Parallax Boe - Bot Robot Kit

    - Includes 200+ page Robotics book - Detailed pictorial and schematic formats - Complete assembly and programming instructions Learn More
  • Beginner Microscope Kit

    Beginner Microscope Kit


    The kit includes

    - 1 beginner's microscope(see specs below)

    -1 polarizing kit, 3x and 6x magnifier

    - set of prepared slides

    - stains and basic dissection kit

    - experiment manual with background information

    - a foam-lined die-cut storage/carrying case.

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    Items 1-8 of 10