Question

In school, Jarrett learned that salt lowers the freezing point of water. He wants to test this in a home experiment. He adds an equal amount of salt and room-temperature water into three identical containers. What is a control of his experiment?

Answer 1

in a container put just water no salt

Answer 2

The freezing point will increase as addition of solutes or gases into a solvent increases the boiling point and decreases the freezing point. This is the reason that water has a slight test.