Grade level: 4 – 5th grades
Skills: Bar graph
Related environmental issues:Energy
Area level: National
The United States generate electricity by using coal, natural gas, and nuclear power. The country also uses renewable resources such as wind and solar for electricity generation. The bar graph below shows how much it costs to generate 1 kwh of electricity from those sources.
1.Which energy source is the most expensive to generate electricity?
2.Fill in an ordinal number. Coal is the ______ most expensive energy source to generate electricity.
3.What costs about half as much as solar power?
Source: Unsubsidized Levelized Cost of Energy Comparison from Lazard, 2014
- nuclear power
- wind power