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Magnifying and Observing Cells
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In this activity related to microbes, learners make slides of cells from an onion skin and Elodea (American or Canadian waterweed) to observe under a microscope.

Comparing Sizes of Microorganisms
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In this activity related to microbes, learners create scale models of microorganisms and compare relative sizes of common bacteria, viruses, fungi and protozoa using metric measures: meters, centimete

Size and Scale: Probing and Predicting
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In this quick activity about predicting (located on page 2 of the PDF under Where's Nano?

Forces at the Nanoscale: Nano Properties of Everyday Plants
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This is an activity (located on page 3 of PDF under Nasturtium Leaves Activity) about surface tension.