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Frank wants to determine how the type of container, that holds a liquid, affects the evaporation rate of the liquid. Which of the following describes the best type of scientific investigation for finding the answer to this question?
Group of answer choices

An experiment in which the shape the container is made of is changed, but all other variables are kept the same.

An experiment that varies the temperature of the liquid, but keeps all other variables the same.

Observations of how long it takes rainwater, that forms puddles in various outdoor locations, to evaporate.

Observations in which measurements are taken of the water level in the same cup after evaporation has occurred.



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