Instruction
Introduction: Adding a solute to a solvent lowers the freezing point of that solvent. This change in freezing point is referred to as a colligative property. In this experiment, you will use the lowered freezing point of water to chill another mixture (ice cream) to the solid state.
Materials:
1 qt ziploc bag 1 gal ziploc bag 1/2 cup whole milk
1/2 cup whipping cream 1/4 cup sugar 1/4 tsp vanilla
3/4 cup NaCl (rock form) ice plastic spoon
measuring cups Styrofoam cup thermometer