How much solar power was installed in the United States?

Grade level:  5th – 6th grades

Skills: rounding (decimal numbers)

Related environmental issues: Energy

The circle below shows how much new solar power was installed the United States each year between 2005 and 2015.

Round each number to the nearest tenth and hundredth.

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Sources: REN 21, 2016

* Solar power means electricity generated by solar panels.

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Answer keys

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How much aluminum cans was recycled?

Grade level:  4th – 6th grades

Skills: Converting percents to fractions and decimals

Related environmental issues: Recycle

The bar graph below shows how many percent of plastic bottles, aluminum cans, glass bottles, and steel cans were recycled in the United States in 2014.

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  1. Write down how many percent of each items were recycled. Then convert percents to decimals and fractions. Write fractions in simplest form.

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  2. Look at the table you created in #1 and use <, > to show which number is larger.

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Sources: “Advancing Sustainable Materials Management: 2014 Fact Sheet” published by the U.S. EPA in November 2016

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Answer keys

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