Then the apples turn brown.
Fast food restaurants solve this problem by adding an acid, but that makes the apple sour.
So we decided to create anApple Stemengineering challenge to solve this real-world problem.
Thisapple sciencewill have children creating an artificial skin that will keep the inside of the apple from oxidizing.
Apple Stem
Have you ever wondered why apples turn brown?
Or better yet, how to stop apples from turning brown.
So lets dive right in and explore anApple STEM project!
Oxidation is a process in which oxygen binds to the molecules of the apple.
As this happens the flesh of the apple turns brown and a little mushy.
The down side is that the flavor of the apple is distorted.
Another possible solution is to protect the flesh of the apple from the air.
This is the challenge for your child.
This is known as the control group.
The various skins are the experimental variables, and the apples wearing them are the experimental groups.
Go through a set of trials, analyze your results, then go through another set of trials.
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