Top Highlights

• Ice has to absorb energy to melt, changing the phase of water from a solid to a liquid.
• When you use ice to cool the ingredients for ice cream, the energy is absorbed from the ingredients and from the outside environment (like your hands, if you are holding the baggie of ice.)
• When you add salt, it lowers the freezing point of the ice, so even more energy has to be absorbed from the environment for the ice to melt
• makes the ice colder than it was before, which is how your ice cream freezes.
• Other Types of Salt

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