Chart assignment

Charts to read and discuss

Read each chart, then answer its questions. Every chart shows its source and date; open it for a table of the numbers and the data to download.

  1. How has crime changed in your state since 1985?
  2. Where does US electricity come from?

Chart 1 of 2 · Crime

How has crime changed in your state since 1985?

The interactive chart needs JavaScript. The numbers are on the chart's page.

Choose any state to see its violent and property crime rates each year since 1985, next to the U.S. rate, as police reported them to the FBI. It opens with California: police there reported about 435 violent crimes per 100,000 people in 2025, against a peak of 1,121 in 1992. A state's year is left out when police departments covering fewer than 3 in 4 of its people reported a full year, as in California and many other states in 2021, when the FBI took only reports from its newer system (NIBRS) and many departments hadn't switched. Rates count only the agencies that reported.

Questions to discuss

  1. In one sentence of your own, what does this chart show?
  2. Find the biggest change or difference in the chart. What might explain it?
  3. Who collected these numbers, and how recent are they? What else would you want to know before drawing a conclusion?

Source: FBI Crime Data Explorer, Uniform Crime Reporting Program (Public domain (U.S. government work); source FBI Uniform Crime Reporting Program) · Data as of Dec 31, 2025

Open the chart and its numbers

Chart 2 of 2 · Energy

Where does US electricity come from?

The interactive chart needs JavaScript. The numbers are on the chart's page.

In 2025 natural gas made 40.8% of US electricity, followed by nuclear (17.7%) and coal (16.6%). Wind made 10.5% and solar 6.7%. Solar counts only utility-scale plants, not rooftop panels, and the 2025 figures are preliminary.

How to read this chart

Each bar is one energy source's share of all the electricity made in the U.S. in a year, so the bars add up to about 100%. The bars start at zero, so a bar twice as long means twice the share. Solar counts only large power plants, not panels on rooftops.

Questions to discuss

  1. Which source makes the most electricity? About how many times more than the smallest bar?
  2. Which of these sources burn fuel and which don't? What share of electricity comes from each group?
  3. Why might a chart of this kind look different in your state than for the whole country?

Source: U.S. Energy Information Administration, Monthly Energy Review (Table 7.2a) (Public domain (U.S. government work)) · Data as of Dec 31, 2025

Open the chart and its numbers

Teachers: make your own chart assignment, or change this one. Free, no account needed.