The mistake in Neville's experiment is when he randomly varies the volume of hot and cold water across his trials.
Scientific experiments must be carefully controlled. Usually, in a scientific experiment, the effect of the independent variable on the dependent variable is carefully examined. One variable is manipulated at a time and its effect on the other variables is observed.
The action that will be considered a mistake in Neville's experiment is when he randomly varies the volume of hot and cold water across his trials.
Missing parts:
Neville is testing a hypothesis through experimentation. He believes that raising the temperature difference between two water samples will lead to stronger circular currents when the samples are mixed together. Which of these actions would be considered a mistake in Neville’s experiment?
answer choices
He measures the strength of each current using the same flow meter.
He randomly varies the volume of hot and cold water across his trials.
He reruns the experiment after fixing calibration problems with his thermometers.
He uses glass containers to hold the water samples instead of plastic ones.
He states his hypothesis prior to beginning any of his experimental trials.
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