Chemistry

8 August, 17:34

Which of the following is an example of how a scientist might use a model?

A. a wrench is used to tighten a nut onto a piece of wood

B. marbles placed onto a hollow sphere are used to describe protons in a nucleus

C. stopwatches measure the amount of time it takes for runners to complete a mile

D. microscopes are used to magnify a group of cells on sets of slides

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