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Walker, Jearl – Scientific American, 1979
Describes a student investigation of a reverse flame in a atmosphere of methane that won second place in the physics division of the International Science and Engineering Fair. Includes a discussion of falling and fracturing behavior, specifically dealing with chimneys, trees, pencil point, stirring rods, and chalk. (BT)
Descriptors: Instruction, Kinetics, Laboratory Experiments, Motion