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This demonstration can be used to help learners visualize DNA by lysing (breaking open) bacterial cells on a slide and “stringing up” the DNA with a toothpick in less than one minute.

Many germs spread by our hands, and often times, people don't wash their hands well enough to get rid of germs.

In this online simulation, learners use antibiotics to cure patients with bacterial infections.

In this health activity (page 7 of the PDF), learners will discover the importance of handwashing as a factor in reducing the spread of pathogens.