Incubating (another word for 'growing')  bacteria and yeast is often a crucial part of biotechnology experiments. Like us, organisms prefer certain...

Here is an easy way to create a 'black box' in which to take photos of fluorescent bacteria under blacklight.

You will need a cardboard box you can cut, scissors or a utility knife, a blacklight (we recommend those with a fluorescent bulb) or a blacklight flashlight and some black cardboard paper or paint.