How much water is needed to make a hamburger?

burger-vector_SGrade level: 3rd-4th

Skills: Addition & subtraction

Related environmental issues: Water

Area level: household

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The table shows some types of food you eat and the amount of water required to produce the food.

  1. Which food requires the largest amount of water to produce?
  2. How much more does a hamburger requires to produce than 1 serving of beef?
  3. How much water does it need to produce 1 apple, 1 cup of milk, and 1 egg?

Source: Water Footprint

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Answer keys

  1. hamburger
  2. 174 gallons (634-460=174)
  3. 148 gallons (33+63+52=148)