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Create simple machines to trade distance for force in this challenge game!

"Design Squad from PBS Kids features a great collection of hands-on activities for elementary and middle school students. The activities are designed to help students explore engineering concepts. The collection of activities is divided into ten categories. The categories are technology, structures, sports, space, sound, simple machines, health, green, energy, and electricity. Each activity contains a materials list and directions. Some of the activities also have demonstration videos."