K'NEX pieces to build your own gear with interlocking teeth and use K'NEX gears of different sizes and types in combination to experiment with speed and force. Determine how gear size and direction impacts work. Measure mechanical advantage and calculate gear ratio. Compare and contrast spur, rack and pinion, worm, crown, planetary, differential and other gear systems. This product contains small pieces which may present a choking hazard.
Some experiments require adult supervision.
Contains functional sharp points and edges. This kit features the lives of prominent women who made significant contributions to her field of scientific study. Bookstore Software Store Directory EHO Book, Video and Music Store EHO Software Store Homeschool Resource Directory Search the Entire Amazon. If you purchase books through our bookstore we receive a percentage of the sale which goes to further what we can do for homeschoolers. If you decide to return later to purchase a book, please do so through our site.