Exploding Baggie

Combining baking soda and vinegar is a classic science experiment that is a guaranteed crowd pleaser every single time. But mix the two ingredients in a sealed plastic baggie and the excitement goes through the roof!

The exploding baggie science trick is sure to knock kids’ socks off.

Check out the simple step-by-step below and then join The Plato Pack so you can access DOZENS more jaw dropping (but easy prep!) science experiments kids will love.

Awesome science for kids! Exploding baggie experiment.

Getting Ready

This activity can be a bit messy, so we chose to do it outside. Before heading off to the park, we gathered a few simple supplies:

  • Zipper storage baggies (sandwich size)
  • Vinegar
  • A few squares of toilet paper
  • Baking soda

We poured 1/2 cup vinegar into the baggie and set it aside.

Then we placed 1 tablespoon baking soda onto a couple of squares of toilet paper. We folded and twisted the toilet paper up so that the baking soda was in a little pouch inside.

Exploding baggie is an explosive twist on a classic science experiment for kids. Gather a few simple supplies, head outside, and run for cover!

We had to be fast for the next part!

We made sure the baggie was sealed except for one little section.

Quickly, we dropped the baking soda pouch into the baggie, squeezed out whatever air we could, and sealed the baggie. We shook it a little bit to release the baking soda and watched the baggie expand. Then we dropped it on the ground, took a few steps back, and waited with anticipation as the baggie got bigger and bigger!

Within a few seconds the baggie exploded with a loud “POP”!

Exploding baggie is an explosive twist on a classic science experiment for kids. Gather a few simple supplies, head outside, and run for cover!

This science experiment was SO fun. My kids wanted to do it over and over again.

We attracted quite a crowd of onlookers (both children and adults) who were excited about what we were doing too. This is a science activity we will definitely be repeating!

Why Does the Baggie Explode?

When vinegar and baking soda mix you will notice that the solution fizzes and bubbles. This is because carbon dioxide gas is being produced.

As the carbon dioxide is made, it fills up the baggie and builds up the pressure until the baggie can’t hold it anymore and pops!

Depending on the strength of the baggie, you may notice that it breaks through the zipper, along the bottom seam, or even straight out the side!

More Fun for Little Scientists

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Hi, I’m Malia.

I LOVE helping Pre-K, Kindergarten and First Grade teachers save time, stay inspired and give EVERY student bigger results. I’m so glad you’re here!

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