RESEARCH METHODOLOGY

Detailed explanation-1: -Salt lowers the freezing point of water. Ice melts faster when salt is added as the salt lowers the freezing point of the water, this is known as freezing point depression. The more salt you add the lower the freezing point. This interesting feature of salt and ice can be used for lots of fun and easy experiments.

Detailed explanation-2: -Salt will always melt ice quicker than both of them. This is because in the same amount or volume, there are more molecules of salt than sugar or baking soda due to the chemical make-up. Salt, baking soda, and sugar will all act to lower the freezing point of the ice, making it melt quicker than the untouched ice cube.

Detailed explanation-3: -Salt water freezes at a lower temperature than the 32 degrees F at which freshwater freezes. The difference between the air temperature and the freezing point of salt water is bigger than the difference between the air temperature and the freezing point of freshwater. This makes the ice with salt on it melt faster.

Detailed explanation-4: -Because salt particles make it harder for water particles to freeze back onto the ice, the ice that is in contact with dissolved salt melts faster. When the saltwater flows over the surface it melts the ice on its way, creating channels, like rivers, over the surface of the ice ball.