
Give it a try and I bet that you will, too!


"MAGIC JACK" Expanding Balloon Experiment
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Materials
- An empty, plastic bottle
- Neon balloons
- Baking soda
- Vinegar
- A funnel
- A blacklight- you can use UV flashlights like these or a blacklight fixture. My kids love using the flashlights!
Method
- Begin by drawing a jack-o-lantern face onto a neon orange balloon with black marker.

- Then, use a funnel to carefully fill the balloon with 1-2 tablespoons of baking soda.

- Add 2-4 ounces of vinegar to the plastic bottle, and then carefully secure the balloon to the top.
- Use caution to ensure that you do not mix the baking soda into the bottle while attaching the balloon.

- When ready, have kids lift the balloon and quickly dump the contents into the bottle.
- As the baking soda and vinegar combine in the bottle they will react, causing the balloon to magically expand!

The Science Behind the Experiment
Extend the Fun
MORE BAKING SODA SCIENCE
- Why do the baking soda and vinegar react?
- What actually causes the balloon to expand?
Extend the Fun
- Make pumpkin slime.
- Make erupting pumpkins.
- Make your own neon pumpkin seeds.
- Make pumpkin play dough.
Want more ideas?
Check out this collection of pumpkin activities for kids.
- Pop Rocks Volcano
- Glowing Volcano
- Exploding Baggies
- Baking Soda Slime
- Apple Volcanoes
- Foaming Snow
- MAGIC Snow
MORE
