Grade level: 3rd – 5th
Skills: Multiplication
Related environmental issues: Water
Area level: household
Your family changed their showerhead from a conventional one to a water-saving one. The new showerhead saves 15 gallons of water during a 10-minute shower.
- When you take a 20-minute shower, how much water can you save?
- If you take a shower once a day, how much water can you save in a week ?
- If there are 4 people in your family and everyone takes a shower once a day, how much water can you save in a day?
Source: National Geographic
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Answer keys
- 30 gallons (15×2=30)
- 105 gallons (15×7=105)
- 60 gallons (15×4=60)