This Particles: Size Makes All the Difference lesson plan also includes:
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High schoolers plot particle sizes of common airborne materials on a log scale. They read an article on particle size and its relationship to the ability to pass through the lungs, into the bloodstream, and eventually into the cells of the body. It is a terrific lesson plan for strengthening literacy as well as for increasing awareness of human impact on the environment. Note that the link to the article itself does not work, but it can be accessed through the National Center for Biotechnology Information or with a simple Internet search for the title.