JoinTech Trek: A different phase change
In physical science, we often use water to demonstrate change of state. However, this teacher demonstration will expose students to unfamiliar substances whose phase changes can be compared to those of water. Subsequently, a phase change that is in reverse of water’s heating curve, cooling from liquid to solid, will show students that substances can freeze at room temperature. By observing the final graph, students will discover that the terms freezing point and melting point are synonymous.