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Curated OER
Warming by Freezing
Ninth graders discover the reasoning behind spraying water on fruit and seedlings in preparation for hard freezes. In this conceptual physics lesson, 9th graders conduct an experiment to measure the heat released when water goes from a...
American Chemical Society
Soda Can Steam Engine
Steam engines have been around since the late 1600s, yet most pupils don't know how they work. Using an soda can, the instructor builds a simple steam engine for scholars to observe. Through a discussion, young scientists learn about the...
Curated OER
Permafrost: Permanently Frozen Ground
Students explore permafrost. In this 3 states of matter lesson, students identify characteristics of solids and liquids. Students observe water and soil melting and freezing at various temperatures. Students make...