Keeping Cut Apples Fresh

The Abundant Garden: Growing Quality Kids Through Gardening by

Image by WordSwag

Keeping Cut Apples Fresh: an activity for children of all ages. In this activity, children will experiment to learn which liquids keep apples fresh and free from browning.

  • Supplies:
    • apples
    • knife
    • tape
    • marker
    • 6 small containers
    • lemon juice
    • vinegar
    • water
    • saltwater solution (1/2 teaspoon salt per cup of water)
    • 7-up
    • gardening notebook/journal
    • paper (if using a binder) – copy paper, cardstock and/or 140 lb weight paper if using watercolors
    • pencil and eraser
    • art medium of choice (colored pencils, watercolors, crayons, or markers)
    • page protectors
  • Wash hands thoroughly.
  • Fill six containers with freshly cut apples.
  • Pour each liquid into one container and label with tape and marker (there should be one “control” container with only apples).
  • After a 30-60 minutes, check the apples and record observations. You will notice that the apples in the “control” group have started “oxidizing” (which is when the apples come in contact with the oxygen in the air and begin to react, turning brown.) Check them again a few hours later and again overnight. Document discoveries made.
  • Place the page(s) in a protector when finished and include them in the garden notebook/journal.
  • Take pictures and tag #theabundantgarden on Instagram to share your fun and for an opportunity to be featured @theabundantgarden.
  • For an older child: discuss why some of the liquids (such as lemon juice and salt water) keep the apples from oxidizing. (Hint: lemon juice is acidic and creates a barrier between the oxygen and the polyphenol oxidase found in apples and salt water has the ability to pull away the water from the apple, exposing it to less oxygen).