by msander | Dec 5, 2018 | Gr 7-8 Science & Tech, Gr 9-10 Science
Density differences cause objects to “float” in liquids that are already stacked on top of each other. With this science-magic trick, you’ll put a new spin on our famous Density Column demonstration. First, you’ll discover how to stack nine layers of liquids on top of...
by msander | Mar 26, 2018 | Gr 7-8 Science & Tech, Gr 9-10 Science, Gr. 11-12 Chemistry
Introduction Cartesian divers are great toys that can be used to teach important science concepts. Several variations of Cartesian divers are on the market. Imagine that you and your classmates are members of a research and development team at a toy company and are...
by msander | Apr 2, 2015 | Gr 7-8 Science & Tech, Gr 9-10 Science
Scientists seem to be infatuated with objects that float and sink. Even non-scientists find great joy in dropping stuff in water to see if it floats or sinks. Fans of David Letterman are quick to point out one of Dave’s favorite segments called, “Will It...
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