Today we are making BARF BAGS😩
Relax!!! NOT real barf! We are using the process of alcoholic fermentation to demonstrate how yeast convert sugar into energy! This is a biological process that produces ethanol & carbon dioxide as a waste product. You may have used this process making homemade bread or pizza dough!
1 pkg of yeast or 2 ¼ tsp of yeast from a jar
1 small cup of warm water
½ cup sugary cereal of your choice ( We are using Frosted Flakes )
What to do
- mix all the ingredients in a snack sized Ziplock bag. Remove all the air. Mix well & let it stand on your desk for the rest of the class period!!
Anwer these questions
Check below for pictures of results from each class period.
After just 1 hour my barf bag looks like this🔍 & it smells like ethanol! 🙊
2nd Hour Barf Bags ( after 1 hour)
2nd Hour Barf Bags ( after 2 hours) we had a couple of blowouts!!! The bags actually burst because there was so much gas production!
3rd Hour Barf Bags (after 1 hour)
6th Hour Barf Bags (after 1 hour)
The chemical formula for what is happening in our reaction is
C6H12O6→ 2 C2H5OH + 2 CO
Try this experiment at home then email ( firstname.lastname@example.org) me a picture of your results!
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