Microbiology Games — Predict, Watch, Understand
These free microbiology games let a child predict what the tiny living world does, watch it happen, and see why. The world of cells and germs is invisible — cells too small to see, bacteria that split in two, viruses that aren’t quite alive — so guessing first, then watching, is how it makes sense. No ads, no sign-up.
Predict what counts as living — all living things are built from tiny cells too small to see.
Predict which cell — both share a nucleus, but only plant cells have a wall and chloroplasts.
Predict helpful or harmful — tiny single-celled bacteria live everywhere and split to multiply.
Predict alive or not — a virus is tinier than bacteria and needs a host cell to copy itself.
Predict what needs magnifying — a microscope reveals cells and germs too small for the eye.
Predict one cell or many — an amoeba does everything to live inside a single cell.
What kids learn
Life is built from cells — and the smallest living things are a single cell. Some microbes help us and some make us sick: bacteria are living cells that multiply by splitting, while viruses are tinier still and need a host to copy themselves. The microscope is the tool that lets us see any of it. Each game isolates one of these ideas.
More science games
Explore the full set on the science games hub, including health games and human body games.
Common questions
What is a cell?
A cell is the smallest living building block. Every living thing — a blade of grass, an ant, you — is made of one or more cells, and they are far too small to see without a microscope. Cells group into tissues, tissues into organs, and organs into a whole living body.
How are plant and animal cells different?
Both have a nucleus (the control center), a membrane, and cytoplasm. But a plant cell also has a stiff cell wall for support and green chloroplasts that make food from sunlight. Animal cells have neither — they are rounder and get their food by eating.
What is the difference between bacteria and viruses?
Bacteria are tiny living cells that can grow and multiply on their own — many are helpful (in your gut, in yogurt, in soil) and some cause illness. Viruses are much smaller, are not cells, and are not fully alive: they can only copy themselves by hijacking a living host cell.
What age are these microbiology games for?
Roughly ages 7–13 (grades 2–7), and each game shows its grade band. Microscopes suit grades 2–5; cells and bacteria reach grades 3–6; plant vs animal cells, viruses and single-celled life reach grades 4–7. The predict-and-watch format needs no reading-heavy setup.