1. The Law of Conservation of Energy Cam-Tu DiepBeatties Ford Road Library

2. The law of conservation ofenergy The law of conservation of energy states that energy can neither be created nor destroyed. 3. The Experiment: MarshmallowSlingshot 4. Materials Needed Medium size marshmallows. Circular Rings (prescription bottles cap rings, orany round ring items). Different size/color rubber bands. Markers to decorate the marshmallows(temporary paper tattoo also work onmarshmallow). 5. How to tie the rubber band 6. Marshmallow Slingshot 7. When you stretch a rubber band the energy from your fingers is stored in the rubber band. When you let the rubber band go. The stored-up energy changes to energy in motion. 8. The Law of Conservation ofEnergy The science behind the fun is calledTRANSFORMATION OF ENERGY. When you pull therubber band back, you are doing WORK on therubber band. How much WORK you do depends howhard you pull on the rubber band (FORCE) and onhow far back (the DISTANCE) you pull the rubberband. WORK=FORCE X DISTANCE. The work youdo is stored as ELASTIC ENERGY in the rubberbands. When you release the rubber band, the rubberband then does WORK on the marshmallow and theELASTIC ENERGY is transformed into what is calledKINETIC ENERGY (the energy of motion) in the flyingmarshmallow. When the marshmallow hits somethingand stops, the KINETIC ENERGY is then transformedinto heat, or HEAT ENERGY. In other words, theENERGY you produce by pulling back on the rubberbands isnt lost. Its just transformed from one kind ofenergy to another. 9. Books that can be use in program orfor display Forms of energy / Anna Claybourne Energy / Tim Clifford Energy / Andrew Dean Foland. Energy / by Christine Webster. 10. Reference http://kitchenpantryscientist.com/?p=1774