No, not necessarily as some scientists simply propose ideas and theorems to later be experimented by other scientists
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The tools that a scientist would use to conduct an experiment would vary greatly on the nature of the experiment.
experiments test the scientist theory
so that the scientist will be easy to do his/her experiments=)
Scientist design experiments to test something.
A scientist needs tools in order to conduct controlled experiments for gathering data. Without the proper materials, a scientist could not make objective observations on their field of research, and so their findings would be meaningless. Also, a scientist needs a large sample size in order to account for all variables that could influence the experiment.