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Activity 8: Pathogen Size Modeling

For a long time, people did not know that viruses caused sickness because the virus particles were too small to be seen with a microscope. As we developed stronger and stronger microscopes we began to see the unusual shapes now known to be viruses. So just how small are they?

Students will use basic math to create size relationships between viruses and bacteria and to determine the number of viruses that could fit on the head of a pin.