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   ocr: How do fireworks burn? 3. LIGHTAND 77 SOUNDE ENERGYI L. KINETIC ENERGY HEAT ENERGY CHEMICAL ENERGY Energy changes in a firework Afirework (1)has a store of chemical energy that is converted into other forms as the firework shoots up into the sky. The moving firework body (2) has kinetic energy and the hot gases it blows out also have heat energy. When the firework explodes (3) more chemical energy converts into light and sound energy. Fireworks use a variety of explosive chemicals that burn with brilliant colors. These chemicals are packed into a case thati is specially designed to create beau ...