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Microbes and Classifying Life

In Zoom In, pick mold, paramecium, or E. coli and raise the magnification up to ×1000 to reveal microbes invisible to the naked eye. In Which Group?, read clues like "no roots, stems, or leaves" to sort 9 living things into fungi, protists, and bacteria — mold as a fungus, paramecium as a protist, E. coli as a bacterium. In Good or Bad, adjust temperature and humidity over 4 days: the very same microbes can turn ingredients into kimchi, soybean paste, or bread — or spoil that same food under different conditions. Microbes aren't simply good or bad; how they act depends on the conditions you set.