The Exploding Lunch Bag

This week’s blog post will be another short experiment that anyone can do at home! This week the experiment will be called the exploding lunch bag. Here’s what you’ll need:

• Zip sandwich bag – zip-lock freezer bags work the best
• Baking soda
• Warm water
• Vinegar
• Measuring cup
• Tissue

1. Go outside or to the kitchen sink.
2. Put ¼ cup warm water into the sandwich bag.
3. Add ½ cup of vinegar to the water in the sandwich bag.
4. Put 3 teaspoons of baking soda in the tissue then fold it up.
5. Work fast now- zip the sandwich bag close but leave a corner open, enough to fit the tissue full of baking soda in.
6. Slip the tissue in and step back
7. Watch the bag slowly expand then explode!


This cool experiment is fueled by the simple chemical reaction between the vinegar and the baking soda. It releases CO2, and once the bag no longer holds that capacity for the CO2, the bag then explodes. Time to scare your friends in the lunch rooms!

Works Cited:
Pflugfelder, Bob. “The Exploding Lunch Bag.” Science Bob. N.p., n.d. Web. 22 Oct. 2013.


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