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Experiment
2
Brushing Your Teeth
Topic: Water
Conservation
Grades: K-3
Subjects: Science in Personal and Social Perspectives
Question: Can you save water by turning the water off when you are brushing your teeth?
Materials:
toothbrush
water
pot
Procedure: 2 days
Day 1
Put pot or bucket under the faucet to collect water.
Turn water on.
Brush teeth as you usually do.
Use measuring cup to measure water in pot.
Record results in chart below.
Day 2
Put pot or bucket under the faucet to collect water.
Turn water on.
Wet toothbrush.
Turn water off.
Brush teeth.
Turn water back on to rinse toothbrush and mouth.
Use measuring cup to measure water in pot.
Record results in chart below.
Chart:
| How teeth are brushed | How much water is used? | How much water a day? | How much water a year? |
| If water is left running during brushing | |||
| If water is turned off during tooth brushing |
Conclusion:
How can you save water when brushing your teeth?
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