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Yeast growth at varying temperatures

Demonstrate the effect of temperature on yeast growth. Students may have a prior belief that temperature effects are linear, ex: a culture at 10℃ will grow at half the rate compared to a culture at 20℃, and a third the rate at 30℃. This experiment would show the non-linear effect of temperature on growth (and relate it to how refrigerators halt spoilage for so long). Students and the teacher can pick temperatures to test beforehand.