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Modeling molecules is solids, liquids, and gases

Posted May 12, 2021 by mbuhl

This model simulates intermolecular forces and lets people change the temperature using a slider. At high temperatures, you can see the molecules fly around as a gas, with occasional collisions. With lower temperatures they condense to a liquid, and even lower they freeze to a solid.

Locating the Epicenter of an Earthquake Lesson

Posted February 28, 2020 by wellina

Identify the location of an earthquake epicenter using a travel time graph and three seismograph tracings. The epicenter is the point on Earth's surface directly above an earthquake. Seismic stations detect earthquakes by the tracings made on seismographs. Tracings made at three separate seismic stations are needed to locate an earthquake epicenter.

Middle School Dissolving Salt Chemistry Module options

Posted August 4, 2017 by mmarkham

This lesson was developed to be used with two stand alone models developed by GUTS as alternatives to the Chemistry Module 4. This is aimed at middle school students. This pairs a hands on lab activity with the CS models to explore the strengths and weaknesses of CS models of physical changes at an introduction to chemistry level. Students decode the models and make changes including adding and testing variables.

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