and a test of air being blown onto a petri dish with varying amounts of air blown. While the experiment shows that there are bacteria in the air and that a small amount will blow onto your hands ...

Petri Dish Picasso ... with a hands-on approach. Kids, especially, get a kick out of painting with these little things called microbes. Here's how you paint with bacteria. Maria Peñil Cobo ...

Replace the petri dish on top of the container. This step may be repeated until one of the reagents is exhausted. Intense heat and flames are produced by this reaction. Perform this demonstration only ...

Like hand soap, dish soap does not kill bacteria, but it lifts them off surfaces so that they can be washed away by water. Phillips says that any soap will work well against washing away bacteria ...