Abstract Science project subject recycled wood charcoal as the rest of the materials used to make use of the bite per quarter by dividing the study into two trials is part 1. Study on the optimal ratio of the various ingredients that provide the best heat energy. The mixing ratio of coal: a different flour: water will give you a different heat by mixing the appropriate ratio is 2:1: 1 using the least time to make water volume 50 ml high temperature to 80 C, and within 4 minutes. Locating it can power 4,100 maximum heat. Calories episode 2 Study of a type of flour that can affect the performance of recycled charcoal. I found that the corn starch, it takes less to make the water volume to 50 ML with high temperature 80C and within 4 minutes. When measuring heat energy, corn starch, it can make up the highest energy 4700 calories.
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