Rock Salt
Rock salt melts ice fastest of the three choices.
Explain: Sand is more for traction, it is abrasive to allow more friction between ice and your shoes.
Cat litter absorbs moisture, cat litter is made of clay and clay really does not melt ice.
Now salt changes the freeze point of water and dumping salt on ice would be your best bet.
A simple experiment would be to take 3 separate cups of water and add a tablespoon of sand to the first, the second a tablespoon of cat litter and the last cup a tablespoon of any salt and place all three in the freezer.
Explain: Sand is more for traction, it is abrasive to allow more friction between ice and your shoes.
Cat litter absorbs moisture, cat litter is made of clay and clay really does not melt ice.
Now salt changes the freeze point of water and dumping salt on ice would be your best bet.
A simple experiment would be to take 3 separate cups of water and add a tablespoon of sand to the first, the second a tablespoon of cat litter and the last cup a tablespoon of any salt and place all three in the freezer.
Rock salt melts ice fastest
Omg it worked thanks!
Salt
Salt then sand then cat litter
My friend and I did a project on it and sand won .
It depends. Cat litter and sand are better at melting ice on sidewalks, driveways, and streets. While mineral rock salt melts ice better on the grass.