What is a virus?, A very tiny thing that can make people sick, A large animal we can see with our eyes, Why can we NOT see a virus with a school microscope?, Because viruses are invisible, Because a virus is very, very small, What microscope do scientists use to see viruses?, Light microscope, Electron microscope, What is the outside of a virus made of?, Protein, RNA, What is found inside a virus?, Protein coat, RNA.

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