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Mini Volcano in a Jar

Create a fizzy, bubbly eruption with this incredibly easy and fun science experiment! Perfect for kids and adults alike, this classic activity brings a touch of excitement right to your kitchen.
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Prep Time 5 minutes
Cook Time 1 minute
Total Time 6 minutes
Servings: 1 activity
Course: Activity, Science Experiment
Cuisine: American
Ingredients Equipment Method Notes

Ingredients
  

  • small jar (a mason jar, an old jam jar, or even a sturdy glass works perfectly!)
  • 2 tablespoons baking soda
  • 1/4 cup vinegar (white vinegar is great for this, but apple cider vinegar works too!)
Optional additions:
  • 1-2 drops food coloring (red or orange)
  • pinch biodegradable glitter
  • 1 tiny drop essential oil (like orange or cinnamon)

Equipment

  • Small jar
  • Tray or baking dish

Method
 

  1. Find a tray or a baking dish to place your jar on. This will catch any overflow from the exciting eruption.
  2. Carefully place your small jar in the center of the tray. This is the foundation of your mini volcano!
  3. Spoon your 2 tablespoons of baking soda directly into the jar. This is the secret ingredient that reacts with the vinegar.
  4. Slowly and carefully, pour the 1/4 cup of vinegar into the jar, right on top of the baking soda. Don't rush this part – the suspense is part of the fun!
  5. Stand back and observe as your mini volcano erupts with a satisfying fizz and foam. It’s a fantastic visual demonstration of a chemical reaction.

Notes

Always use a tray or a larger container to manage mess. Doing this experiment outside on a warm day can also eliminate mess concerns. Slightly warmer vinegar can sometimes result in a slightly more vigorous reaction. You can experiment with varying the amounts of baking soda and vinegar to see how it affects the eruption.