What are the Top 5 wind-powered states?

Grade level: 4th – 6th grades

Skills: Decimal numbers (addition and subtraction)

Related environmental issues:  Energy

The table below shows wind power capacity in the top 5 states in the United States by the end of 2017.

Screen Shot 2018-04-03 at 11.59.14 AM

  1. What state had the largest wind power capacity in the United States by the end of 2017?
  2. What is the difference between the largest and the smallest numbers?
  3. Which state had the wind power 2.4 gigawatts more than that in Kansas?
  4. What is the difference between the wind power in Iowa and that in California?

Sources: U.S. Department of Energy (2018) US Wind Power Cumulative Installed Capacity

________________________________________________________________________

Answer keys

  1. Texas
  2. 17.54 (22.64 – 5.10 = 17.54)
  3. Oklahoma
  4. 1.7 gigawatts (7.31 – 5.61 = 1.7)

 

What country is the World’s largest producer of CO2?

Grade level: 4th – 6th grades

Skills: Circle graph

Related environmental issues: Climate Change

The circle graph below shows how much carbon dioxide (CO2) was emitted from the world’s top five CO2-emitting countries in 2015.

Screen Shot 2018-03-15 at 12.26.41 PM

  1. What country emitted the largest amount of CO2 in the world?
  2. India emitted half as much CO2 as the United States.  What percentage of the world’s CO2 did India emit in 2015?
  3. European Union emitted twice as much CO2 as Russia.  What percentage of the world’s CO2 did European Union emit in 2015?
  4. Together, what percentage of the world’s CO2 did the rest of the countries emit?

Sources: Netherlands Environmental Assessment Agency“CO2 time series 1990-2015 per region/country”

________________________________________________________________________

Answer keys

1. China

2. 7%

3. 10%

4. 100 – 29 – 14 – 10 – 7 – 5 =  35%