As we continued learning about the immune system, we wondered where all those nasty bacteria, fungi, parasites and viruses come from. So – off we went to find some q-tips and places we touch most often to find just that thing! We swabbed Olive’s mouth, the kitchen sink, a keyboard, a toilet (yuck) and a plant…. we also left one petri dish with nothing on it as our control. We put it in a dark, warm place for 4 days and waited. Guess what happened? MOLD grew on all of them… strangely, including the control, which made us WONDER even more! The kitchen sink sample was watery and disgusting, all different colors and cloudy. The toilet one had a big black spot and white fuzz around it. Olive’s mouth was pretty clean (WHEW!) and the worst of all was the PLANT! 3 colors of mold and lots of it. Check out the images we took under our magical microscope!!!!! I guess it’s true that bacteria is EVERYWHERE – including the kitchen sink!!!