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The temperature of a substance influences its density, which in turn influences the motion of the substance. <br><br> <i><u>Convection Detection (Text 2)</u> -- This text is part of an Investigation Set that explores convection currents. In this investigation, students will explain how changing temperature affects the motion of molecules by modeling convection currents that occur deep within the Earth. As students conduct the investigation, they should use their observations and prior knowledge as evidence to explain the motion of tectonic plates. <br><br> <a href="https://files.activelylearn.com/Teaching%20Guides/Teaching%20Guide-%20Convection%20Detection.pdf">Click here to downl