Baking Soda Surprises

posted in: S.T.E.A.M | 0

Baking soda and vinegar. What could be better for a group of little boys?! My middle little is hosting a Science Birthday Party next week and I thought this would be a perfect experiment to conduct. To up the fun factor I hid some Lego parts in the baking soda part, that the boys will get to add to their treat bags. I gave it a test run this week to make sure the experiment would work and it was FANTASTIC!!

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Materials + Supplies

  • Baking Soda
  • Water
  • Lego or Other Small Toy
  • Baking Sheet or Cooling Rack
  • Parchment Paper
  • Vinegar
  • Liquid Dish Soap
  • Tray or Bowl
  • Eye Dropper (Optional)
  1. Pour some baking soda into a mixing bowl. I just guessed at how much I would need (you can always add more if needed). Add just enough water to make a dry paste like mixture. You want the baking soda to hold together, but not be soupy.
  2. Grab a clump of the mixture + hide the Lego or toy inside. Squish it into a small ball + set on a baking sheet or cooling rack lined with parchment paper. I drew lines on my parchment paper, so that all the parts for each Lego Man were still together.
  3. Let the baking soda balls dry over night until hard.

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4. To reveal the prize + see the fabulous reaction between the baking soda + vinegar, place the baking soda balls into a tray or bowl.

5. Add a small squirt of dish soap + either squirt the vinegar onto the baking soda with an eyedropper or you can pour it on using a measuring cup. The vinegar dissolves the baking soda with a bubbly, foamy awesomeness (the dish soap adds to the bubbles) to reveal the prize inside.

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It worked out so well! I cannot wait to do at the Science Birthday Party with the boys!!

lauren

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