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Apple Slice Science!
When apples are set out in the air, they turn brown. But when they're coated with lemon juice, the acid in the juice keeps the apples fresh.
In this activity your child will design her own happy face snack and experiment with using lemon juice to keep the apples fresh. In the end, she'll have learned about the effects of lemon juice on apple slices, and have a healthy snack to go along with the lesson!