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Another student repeated the investigation with the same volumes of solutions at the same temperature of 25 degrees Celsius. Give two other variables that would need to be controlled in the investigation
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Cathy hypothesized that corn would not grow in mud. to test this hypothesis, she took corn kernels and placed 5 in mud, 3 in soil, and 2 in water. to her surprise, the kernels in the mud grew faster than the kernels in the soil. what error might have caused these unexpected results? a. wrong hypothesis b. not enough variables c. undefined control d. too many variables
Answers: 3
Another student repeated the investigation with the same volumes of solutions at the same temperatur...
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