Harry's+Very+SEXY+Group+^_^

When making ice cream, the reason for using salt with the ice is because salt is an ionic compound and when added to water the ions start to dissociate. Once you put the salt into the ice the ice's freezing point starts to decrease.This is called freezing point depression. Freezing point depression is a colligative property of a solution, and is affected by the concentration of the solution. Freezing point depression means that the solvent's freezing point has been lowered; if water freezes at 0 degrees Celsius, then when salt is added it will freeze at lower temperature. This lowering of the ice's freezing point causes its melting point to lower as well. Melting is an endothermic phase change, which means that it needs to absorb energy in order to occur. The heat needed to melt the ice is drawn from the solution, and this energy transfer causes the solution to freeze, creating ice cream.

Observations:

Ice cream started to become a slush like materiel Warm Still had brown color Started to cool became a mush texture started to cool became cold TASTED GOOOOOOOOD