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What affects how much respiration yeast does?  

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Brief: What affects how much respiration yeast does? Background knowledge: The temperature affects how much respiration yeast does. The higher the temperature the more respiration will occur, which will produce co2 which will make more bubbles .The heavier the weight or the more water you have, more respiration will occur. Input Variables: I would change the amount of sugar, yeast, temperature, water and oxygen. Prediction: The higher the temperature the more respiration will occur. Explanation: When you up the temperature the molecules are getting close together and more energy is produced. Apparatus: test tube Delivery tube Stopwatch Kettle Thermometer Yeast Sugar Water Mixing tool Weighing scale Diagram: ...

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