What this lesson teaches
This activity illustrates acid-base reactions by using fruits to create fizzing eruptions. Children will see firsthand how acids in fruit react with baking soda, making chemistry tangible and exciting.
Science in Action
Can you finish fizzing fruit volcanoes in about 15 min?
Fizzing Fruit Volcanoes
You will this activity illustrates acid-base reactions by using fruits to create fizzing eruptions.
Duration15 min
Age GroupAges 15–16
DifficultyBeginner
SubjectScience
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How the activity runs
The learning connection
Visual and tactile experiences engage children deeply, leveraging embodied cognition. The dramatic fizzing reaction provides immediate feedback, helping kids internalize chemical reactions as they witness the interaction between acids and bases in real-time.
Try it with your learner
1. Cut the top off a small lemon or orange to create a 'volcano'. 2. Squeeze a little juice into the hollow space. 3. Add 2 tablespoons of baking soda into the fruit. 4. Optionally, add a few drops of food coloring for effect. 5. Watch as fizz and bubbles erupt from your fruit volcano! 6. Discuss what happened and how the ingredients interacted.