Germ Safari

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Germ Safari. Mrs. Swearingen’s 3rd Grade Summer Class. Observation: We saw lots of bacteria on our hands. Hypothesis: Things that people touch have more bacteria. Prediction: We would see more bacteria on things that people touch a lot. What did we do?: - PowerPoint PPT Presentation

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  • Germ SafariMrs. Swearingens 3rd Grade Summer ClassObservation:We saw lots of bacteria on our hands.Hypothesis:Things that people touch have more bacteria.Prediction:We would see more bacteria on things that people touch a lot.What did we do?:We swabbed things that people touch and things that people do not touch.We dipped a swab in water.We swabbed back and forth a spot as big as our pinkie finger.We rubbed the swab on a petri dish.We looked at our petri dishes after 2 days.What did we see?We saw lots of bacteria.We saw more bacteria on the light switch, the computer keyboard, the Bulldog plaque and the dusty TV.ConclusionThings that people touch a lot and things that are not cleaned have the most bacteria.Things People Dont Touch.Things People Touch.10013124850215328100100