Apples And Lemons Kitchen Science Experiment
In this fun and easy kitchen science experiment for kids, we’re going to see if lemons can keep apples from turning brown.
Materials:
- Apple
- Lemon
- Knife
- Plate
Instructions:
- Cut the apple into four equal sized pieces.
- Put the pieces onto the plate.
- Now cut the lemon in half.
- Squeeze lemon juice onto two of the pieces of apple.
- Wait three hours and observe any differences between the two pieces of apple that have been covered in lemon juice and the two that have not been covered in lemon juice.
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How it Works:
When an apple is cut open, the enzymes in the apple become exposed to oxygen in the air, causing the oxidation process to begin. The longer the enzyme is exposed, the browner each slice will become. Lemon juice contains citric acid, and helps keeps the oxidation process from occurring.
Make This A Science Project:
Try different types of juices. Try timing different types of juices to determine which ones keep the apple from browning the longest. Try adding salt to the juice.
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