Percent Increase and Decrease Quiz
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Why Do Roads Get Salted? STEM Investigation — Lowering the Freezing Point
In this hands-on STEM investigation, students explore freezing point depression and phase changes by testing how adding different amounts of salt affects how quickly ice melts. Using real-world winter road safety as the context, students investigate why salt is spread on icy roads and how it changes the behavior of water at low temperatures. Students measure ice mass and temperature over a set time period, compare salted and unsalted ice, and analyze how increasing salt amounts impacts melting.
6th - 11th
General Science, Physical Science, Physics
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