In this lab students investigate how three factors, increased temperature of the solvent, stirring a solution, and increasing the surface area of a solute, affect the rate of dissolving of a solution. This lab uses simple supplies: cups or beakers, spoons, water, and sugar cubes.
There are TWO versions of this lab included. The first is a simple one that compares each factor against a control. The second version looks at each factor individually as well as combining factors in order to see the how the factors combine to increase the rate of dissolving.