Item PT012001: Earth's plates are miles thick.

A scientist measured the thickness of one of earth’s plates. Which of the following could be the scientist’s measurement if she measured the thickness near the middle of the plate?

  1. Six inches
  2. Six feet
  3. Sixty feet
  4. Sixty miles

Distribution of Responses

Chart showing distrubtion of responses for Item PT012001

Percent of students responding correctly

Grades 6–839%
Grades 9–1247%
Primary Language is English42%
Primary Language is not English36%

View data table