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A science experiment regarding the exploration of gravity, motion and other forces is presented using a piece of cardboard. A list of materials is provided along with specific procedures and safety considerations. It is concluded that a center of gravity is possessed by every object, which is related to the stability of the object on its base.

This section describes an experiment using a breakfast box to study about levers or the center of gravity. The skills that can be gained by students from the experiment are enumerated, including the ability to identify the center of gravity in other structures or in handheld objects. Some questions that can be discussed are also cited as well as suggestions for presentation.