Bena thinks that dissolving more salt in water causes the mixture’s freezing temperature to change.Which is the best type of scientific investigation for Bena to use to study this?

Bena is testing whether the amount of salt causes a change in the water’s freezing temperature. An experimental investigation lets her change the amount of salt while keeping other conditions, such as the amount of water, controlled. This makes it possible to determine whether salt concentration affects the freezing temperature, so the best choice is an experimental investigation because it allows for the control of variables.

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