"Catapults" Trailer

Students discover the best way to launch plastic grapes with a catapult that converts mechanical energy into kinetic energy. This relates to kinetic and potential energy, simple machines, levers, drag, and Newton’s laws of motion. This video also includes one of Mr. Mac’s crazy stories, “Rescue the Cookies!,” to help students remember the lesson. Difficulty: Hard

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Note: All activities in this lesson should be performed with adult supervision. Likewise, common sense and care are essential to the conduct of any and all activities, whether described in this lesson or otherwise. Parents or guardians should supervise children. Rock-it Science assumes no responsibility for any injuries or damages arising from any activities.