What region had the lowest gasoline price?

Grade level: 4th – 6th grades

Skills: Bar graph 

Related environmental issues:  Energy

The bar graph below shows the average price of gasoline per gallon in five regions the United States in 2017.

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  1. Which region had the highest gasoline price?
  2. Which region had the lowest gasoline price?
  3. Gasoline in which region cost between 2.5 and 3 dollars per gallon?
  4. Which region had the third cheapest gasoline price in the United States?

Sources: U.S. Energy Information Administration (2018) Retail Gasoline and Diesel Prices


Answer keys

  1. West Coast
  2. Gulf Coast
  3. West Coast
  4. Rocky Mountain

How much food is wasted?

rade level: 4th – 5th grades

Skills: Multiplication

Related environmental issues:  Reduce, Reuse, Recycle

Have you ever thrown away food after you felt full and stopped eating? In the United States, 30% of edible food is spoiled and thrown away.  That is as big as each person throwing away $494 every year.

  1. You have 4 people in your family. How much can your family save in a year if food is not wasted at all?
  2. What can you do to prevent food waste?



Sources: U.S. EPA (2016). Sustainable Materials Management Program Strategic Plan. page 6.

Note) The food waste (and loss) is equivalent to $161 billion annually.


Answer keys

  1. $1,9764  (94 x 4 = 1,976)
  2. Answer may vary:Don’t over-serve food, Save and eat leftovers,Vacuum-pack unprepared or pre-cooked ingredients, Store food properly, Keep a record of your waste, Plan your meal before shopping