Mold on a sandwich discovery for kids12/5/2023 ![]() I thought for sure that the trash can lid would be the worst, but from the results it seems my stove needs a good scrubbing!! Maybe there were food remnants on my stove that made it grow more? I’m not sure, but I gave it a good cleaning after finishing this experiment. Try out our Scientific Method printable set for this! This is a great time to teach about a hypothesis. We guessed ahead of time which areas we thought would be the dirtiest and grow the most mold. We kept them growing for about a week to really see a large amount of mold growth. After a few days (even after just one day) mold will start to grow on the surfaces. ![]() Anywhere will work, just try a variety of places to see different results.Īfter swabbing these different areas, label each cup and gently rub the q-tip all over the gelatin in the cup. You don’t want to break the surface of the gelatin, so do this carefully.Ĭover them securely and set in a dark place for a time to allow the mold spores to grow. We swabbed the trash can lid, the stove burner, the bathroom cabinet handle, one of my kid’s hands, the kitchen counter. The next day, after the gelatin was set, we got a few q-tips wet and rubbed them on different surfaces throughout the house. I waited a day before getting back to it, but it is done in a few hours usually. Now you need to let the gelatin set and solidify. We only had a couple of petri dishes, so we used a combo of them and plastic cups.īe sure your containers are sealed so no dust or debris can get in ahead of the experiment. Make sure these containers are clean and not contaminated already. You don’t need much in each container. We used six different ones and just divided it evenly. Boil 2 cups of water and prepare the gelatin according to the package directions. To do this gross science experiment you need unflavored gelatin, q-tips, and some sanitized containers (jars, plastic cups, petri dishes…). ![]() The kids and I had fun with this one, but is honestly gross to think about the amount of germs on the things we touch all of the time. I was quite surprised by the results of our experiment. ![]() But also, it was cool just to see how and where mold grows. Have you ever wondered how dirty your house really is? I decided to try a little mold science experiment with my kids and see what things we need to do better at cleaning. ![]()
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