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insens350 [35]
3 years ago
13

Hannah wants to measure the length of time it takes for a mouse's heart to beat fifty times. Which of the following tools would

be the most useful for this investigation?
A.
stopwatch
B.
thermometer
C.
ruler
D.
balance
Social Studies
2 answers:
anastassius [24]3 years ago
4 0
The best answer I’ll say it’s (B).
choli [55]3 years ago
3 0
A, Stopwatch. A stopwatch measures time.
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