Apple Oxidation / Oxidacion de Manzanas
Objective:
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Students will practice making a hypothesis.
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Students will observe the oxidation process.
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Materials:
5 Ziploc bags, apple, water, lemon juice, vinegar, milk, knife (for adult use), cutting board, permanent marker
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Procedure:
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Gather your materials
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On 4 Ziploc bags, write the name of the liquid you’re going to test. Label a fifth bag “nothing” for your control bag. This bag will contain apples with no liquid. That way, you’ll be able to see the difference between a normal apple and the other apples that have been soaked!
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Pour the water, lemon juice, vinegar, and milk in separate bags. Make sure to match each liquid to its label.
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Place two apple slices in each bag. Seal the bag and lightly shake it so the liquid coats the apple slices. Let them soak for two or three minutes.
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Pour any excess liquid out of the bags. Reseal them and check on the apples every 10 to 15 minutes to see what happens.
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