Teach a quick and fun science lesson with the Apple Volcano/Vinegar and Baking Soda Science Activity. The activity is a great way to get children to study science while using items you already have at home.

Are you always looking for new ways to educate your children about STEM and science? If you like to complete various experiments together, the Apple Volcano and Baking Soda Science Activity is one of those quick, fun, and easy experiments that you do not want to miss out on. You can complete this activity with your children in 30 minutes or less.

apple volcano science experiment using baking soda and vinegar

Offer your children a hands-on experience that they will remember for years to come. You will only need an apple, vinegar, and a few other items to complete this activity and demonstrate to your children exactly how certain chemicals react when combined.

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Supplies Needed to Complete this STEM Activity:

You will not need much to complete the Apple Volcano/Vinegar and Baking Soda Science Activity. The supplies required are ones that you probably have at home, including:

White Vinegar. You will add white vinegar to the inside of your apple to create a reaction that is sure to impress your little ones.
Apple. Use any apple that you have at home. Just make sure you can quickly and easily remove its core!
Baking Soda. The baking soda helps create a reaction when combined with the vinegar, making it a must-have for completing this science activity.
Melon Baller. Use a melon baller to remove the core from the apple, creating space for the vinegar and baking soda.
Food Coloring. Although it is optional, food coloring makes the volcano look even better. You can let your children select the color to use.

Supplies needed to make an apple volcano

With just five items needed to complete the Apple Volcano/Vinegar and Baking Soda Science Activity, you can quickly see why it’s that simple to make. Carefully core your apple with the melon baller and get ready to have fun with this experiment.

Create the cavity: Place the apple upright on a cutting board (trim a thin slice off the bottom if it wobbles). Starting at the stem end, press the melon baller straight down about ½ inch, then twist and scoop to remove a small section of core.

Check depth frequently and stop before you reach the bottom—aim to leave at least ½ inch (1–1.5 cm) of apple intact so the “cup” doesn’t break through. Pick out any remaining seed bits and blot the inside dry with a paper towel.

Add the baking soda.
Spoon 1–2 teaspoons of baking soda into the cavity. Gently tap the apple so the powder settles. (A mini funnel helps with less mess.).

Add color (optional).
Either drip 2–3 drops of food coloring directly into the well or tint a small cup of vinegar instead; tinting the vinegar keeps hands cleaner.

Make it erupt.
Slowly pour 2–4 tablespoons of vinegar into the cavity. Pour in a thin stream and watch as the fizzy foam rises and spills down the sides like a tiny volcano.

The end result is so remarkable!

Repeat the reaction.
When the fizz slows, add another spoon of baking soda and more vinegar. You can run several eruptions from one apple. (Slightly warm vinegar will make the reaction livelier.)

Quick clean-up.
Rinse the tray, compost or discard the apple, and wipe the surface. The ingredients are kitchen-safe, but the final mixture is not suitable for consumption, especially if you have used soap or coloring.

Apple Volcano Science Experiment for kids

Benefits of this Apple Volcano/Vinegar and Baking Soda Science Activity

The Apple Volcano/Vinegar and Baking Soda Science Activity will demonstrate to children what happens when different chemicals are combined.

The purpose of the activity is to help children learn more about chemical reactions. The activity is simple enough for young children to get involved and help with the process of putting it all together, watching as the apple turns into a volcano right before their eyes.

While you may need to use the melon baller to remove the core, you can let your children pour in the ingredients to see what kind of reaction they will get from it. The experience is a fun one that will change a child’s perception of science for the better.

If you have multiple children, consider supplying each one with an apple without its core, allowing them to add the baking soda and vinegar by themselves.

More Fun Science Craft Experiments:

Apple Art Stamping Craft

Mentos Explosion Experiment – Make a Guyser

How to Make Homemade Floam

How to Make Glow in the Dark Bubbles

Pop Rocks and Soda Experiment

This apple volcano experiment is a quick, low-prep way to turn curiosity into hands-on learning—and a little kitchen magic. In just a few minutes, kids observe how baking soda (a base) reacts with vinegar (an acid) to release carbon dioxide gas, creating the foamy “eruption” they love while practicing fine motor skills, following directions, and simple data collection.

Cleanup is easy, supplies are inexpensive, and you can repeat the reaction multiple times or tweak variables (amounts, temperature, dish soap, and colored vinegar) to compare results, just like real scientists.

Whether you run it at home, in a classroom center, or outside for maximum fizz, this activity delivers big excitement and clear science in a small package.

Save this for your next rainy day, and don’t forget to snap a photo of your mini volcano in action!

1) What age is this for?
Great for ages 3–10 with adult help. Younger kids scoop/color while an adult handles cutting and pouring.

2) Is it safe?
Yes—baking soda and vinegar are safe for use in the kitchen. Don’t eat the mixture (especially if you add soap or coloring). Avoid eye contact; wash your hands afterward.

3) How do I keep the mess down?
Work on a rimmed tray or baking sheet. Use a funnel for pouring. Keep paper towels nearby.

4) Why does it erupt?
It’s an acid–base reaction: vinegar (acid) + baking soda (base) → carbon dioxide gas (CO₂) + water + sodium acetate. CO₂ makes bubbles; soap traps bubbles into foam.

5) Can I use apple cider vinegar or lemon juice?
Yes. Any vinegar works; white vinegar foams most predictably. Lemon juice works but is weaker—use a bit more.

6) Can I use baking powder instead of baking soda?
Not recommended. Baking powder contains other ingredients and reacts less dramatically.

7) How much baking soda/vinegar should I use?
Start with 1–2 teaspoons of baking soda in the cavity and 2–4 tablespoons of vinegar. Add more in small increments to repeat eruptions.

8) My eruption is weak—what went wrong?
Common fixes:

Add a little more vinegar.
Use fresh baking soda.
Warm the vinegar slightly (10–15 seconds).
Dry the cavity before adding baking soda.
Add a drop of dish soap.

9) The liquid leaked out of the bottom—help!
You hollowed too deep. Next time, leave ~½ inch (1–1.5 cm) at the bottom. If it’s already leaking, set the apple in a small bowl to contain the reaction.

10) Can we repeat the experiment?
Yes. Add another spoon of baking soda and more vinegar. One apple usually lasts for several rounds.

11) Classroom tips?
Pre-hollow apples, placing each on a tray, and station funnels and pre-measured cups (1 tsp baking soda and 2 Tbsp vinegar). Rotate groups; have a “refill” station.

12) What concepts can I teach with this?
Acids/bases, gas production, physical vs. chemical change, variables (amounts, temperature), simple data collection (time to finish fizzing).