Amazon has this K’NEX Education STEM EXPLORATIONS: Gears Building Set Building Kit
The set includes 140+ parts for a single child or team of 2 children to build 3 unique geared models: a crank fan, a car window and an egg beater.
Students will learn about gear configurations, gear ratios, rotational speed, mechanical advantage and more!
The experiment guide is aligned to National STEM standards and is appropriate for Grade levels 3-5.
