The freezing temperature is where a substance turns from a liquid to a solid and melting temperature is the temperature where a substance turns from a solid to a liquid. We had to investigate the cooling and warming behaviors or the substance water. Then we looked at our graphs created on Logger Pro and determined and compared the freezing and melting temperatures of water.
What do the different slopes on temperature vs. time graph mean?
Why add salt?
On the side of the Ice Cream Salt box it lists the uses of what you can use the salt for because it has melting and freezing properties.
- Freezing Ice Cream
- Melting Ice & Snow
-Sprinkle Morton® Ice Cream Salt on steps, sidewalks and driveways for fast melting. Notice: The use of salt for melting ice and snow may induce or accelerate damage to certain concrete surfaces. To help minimize surface damage, use only enough salt to melt the snow or loosen the ice, then promptly remove the slush formed.
- Fast Cooling: Sprinkle Morton® Ice Cream Salt liberally over ice in which beverages (cans or bottles) or watermelon have been placed. This will result in more rapid cooling at lower temperatures than is possible with ice alone.
Melting
Salt melts ice because it lowers the freezing point of water. Water freezes at 32 F Water with salt or any other substance in it will freeze at a lower temperature. The coldness of the temperature depends of what you use.