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Pedro and the Volcano Experiment

Pedro experiments with a baking soda volcano. It didn’t quite work out as planned.

Try it yourself! Don’t worry, yours will turn out better than Pedro’s!

What you need

  • Baking Soda
  • Vinegar
  • Dishsoap
  • Water
  • Cup or volcano model with container in the middle

What you’ll do

1. Scoop two tablespoons of baking soda in the cup.

2. Add three tablespoons of water.

3. Drop in two drops of dish soap.

4. Pour vinegar into the container and watch it erupt!

Baking soda is a base and vinegar is an acid. Combining the two causes a chemical reaction that bubbles and breaks up the liquid into the water while releasing carbon dioxide into the air (which makes the fizzing sound). The dish soap adds extra bubbles.

Video: Volcanoes Erupting Around the World

10 Comments on Pedro and the Volcano Experiment

  1. My son, Cris, now 21, demonstrated this as a Lone Cub Scout to his one-room school in México. It worked great and he got extra credit.

  2. mine turned out better

  3. mtsthelensfan1980 // April 25, 2016 at 6:36 pm // Reply

    The 1980 eruption of Mount St. Helens was far more devastating than that of Kilauea in 1983.

  4. minecraft pro // February 14, 2016 at 12:38 am // Reply

    pedro says “ITS ALIVE ALIVE!”

  5. How funny! I didn’t know Pedro was a science fanatic. Did Pedro make bubbles come out of the volcano?

  6. Some Random Guy // August 28, 2015 at 4:02 pm // Reply

    The Magic of Editing

  7. Someone to post a video on how to do this with the cup

  8. Speed Surge // July 21, 2015 at 10:23 am // Reply

    tried it, but too much vinegar makes the volcaneo turn into a lake.
    NOTE: measure your ingredients BEFORE you think to eyeball it.

  9. My Lone Cub Scout did this as a Cub project, and got extra credit at school after demonstrating it there.

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