Our very first Scientist of the Week at SRH!
Congratulations and well done for correctly answering our first science question
"Why does salt melt snow?
So the answer to the
question is:
Salt lowers the freezing point of water. When salt dissolves into liquid water, water molecules have a tougher time sticking together and forming ice. Salt cannot melt solid ice - but it can dissolve into the layer of water on top of the ice, which helps melt the ice below.
Always pre-treat your driveway or roads with salt before the temperature dips, the salt will have a chance to mix with slush before the water freezes.
"Why do birds not fall off a branch when they sleep?"
