Engaging your child in simple science experiments can significantly enhance their curiosity and instill a lifelong love for learning. If you’re looking for a fun yet educational activity to do together, consider the Apple Oxidation Experiment. This easy experiment not only introduces your child to basic scientific concepts like oxidation but also demonstrates the effectiveness of antioxidants in a very visual and hands-on way. At ConnectEd, we believe in making science engaging, fun, and accessible. Here’s how you can explore this fascinating experiment at home.

Materials Needed:

To get started, you’ll need the following items:

  • A fresh apple
  • A knife (for adult use only)
  • A cutting board
  • Lemon juice
  • A paintbrush or cotton swab
  • Two small bowls

Step-by-Step Guide:

Join us for a free demo to see how ConnectEd brings learning to life, and follow these steps to conduct the Apple Oxidation Experiment:

  1. Preparation:
    • Carefully cut the apple in half. This step should be performed by an adult.
    • Place one half of the apple in a bowl and set the other half aside.
  1. Application:
    • Dip the paintbrush or cotton swab in lemon juice.
    • Gently apply the lemon juice to the cut surface of the apple half that’s in the bowl.
  2. Observation:
    • Let both halves of the apple sit undisturbed for a few hours.
    • Observe and document any changes in the appearance of the apple halves.

Scientific Explanation:

  • Oxidation: This is a chemical reaction where oxygen in the air reacts with the substances in the apple, causing it to turn brown.
  • Role of Lemon Juice: Lemon juice contains citric acid, which acts as an antioxidant. Applying it to the apple forms a protective barrier that slows down the oxidation process.

Observations to Make:

  • The untreated apple half will likely brown faster as it undergoes oxidation.
  • The half treated with lemon juice will exhibit less browning, showcasing the power of antioxidants.

Further Exploration:

  • Try this experiment with other fruits like bananas, pears, or avocados to see if they react similarly.
  • Encourage your child to think of other substances that might slow down oxidation and test their ideas.
  • Document and compare results to deepen the understanding of the experiment.

Benefits for Your Child:

  • Learning the Scientific Method: This experiment teaches children how to hypothesize, experiment, observe, and conclude.
  • Enhancing Engagement: Hands-on activities make learning more enjoyable and impactful, encouraging children to explore further.
  • Building Foundations: Such experiments lay the groundwork for understanding more complex scientific concepts in the future.

Take It to the Next Level:

Consider enhancing your child’s exploration of science with age-appropriate experiment kits or books tailored for students in standard 8 and beyond. These resources can offer a variety of exciting experiments, further fueling their passion for science.


The Apple Oxidation Experiment is a perfect example of combining fun with education, allowing children to see real-world applications of scientific principles. By conducting such experiments, you help nurture your child’s curiosity and critical thinking skills, setting them on a path of discovery and learning. ConnectEd is here to complement these experiences with structured classes that deepen their understanding and enjoyment of science. Join us to discover more ways to enrich your child’s educational journey.

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