As the glass of water was placed in the freezer, the temperature of the water decreased, causing its thermal energy to drop. This reduction in temperature led to a decrease in the kinetic energy of the water molecules, resulting in them moving more slowly and eventually forming a solid as they reached the freezing point. The heat lost from the water was transferred to the colder environment of the freezer, facilitating this phase change from liquid to solid.
You fill a glass with room temperature water from the sink and then place it in the freezer. After a few hours, you take the glass out and the water is now a solid. In two to three sentences explain what happened to the water in the glass as the temperature decreased. Key words to include for full points: kinetic energy, thermal energy, temperature, and heat
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