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Objective:
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Students will differentiate between clean and polluted water. Students will observe the effects of pollution on healthy plants. Students will verbalize their thoughts and observations in the form of simple answers to questions two weeks into the lab experiment.
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Materials:
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Three sets of healthy plants, pure water, dirty water, water mixed with rubbing alcohol or bleach
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Procedure:
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Given three sets of healthy plants, students will monitor and chart the growth and appearance of each set of plants. Set A will be watered with pure water. Set B will be watered with dirty water. Set C will be watered with water mixed with water mixed with rubbing alcohol or bleach.
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Questions:
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1. Which plant is the healthiest? Why?
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2. What effect did the dirty water have on Set B?
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3. What effect did the water mixed with rubbing alcohol or bleach have on Set C.?
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4. Why is pure or clean water important?
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5. What effect would polluted water have on people?
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6. Would you drink dirty water?
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7. How can we keep our water supply clean?
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