This is a great way to show kids how germs are in our food and “see” the need to refrigerate our food to limit bacterial growth.
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What you’ll need:
- 2-3 glass soda bottles
- Yeast
- Balloons
…To do the bacteria experiments:
First we drank two sodas. This might have been the kids favorite part of the experiment. When else do they get to drink soda at 10am?
We dropped one teaspoon of yeast into each bottle, then we filled each halfway full of warm water and put a balloon on top. One bottle went into the fridge, and one went onto the counter near the oven.
We talked about how the yeast would act as bacteria would, if the balloon blew up, then the yeast was growing.
When we got home, the balloon on the counter had blown up, but the one in the fridge hadn’t blown up at all. We are going to watch it a few more days to see what happens.
This activity is part of our Germs Unit. Thanks Jennifer for creating it for us!
Check out Jennifer’s blog for other learning activities.
Ok-this is very eye opening! I’m glad i’ve discovered your blog, i’m going to learn lots! 🙂 Your kids are adorable!
hmmmm…very quirky…I like seefood too..hehehe
haha, thank you, I think they are pretty adorable too!
This is great. The only my son “believes” me is by showing him…this would do the trick.
Holly