Original Project
Plate Tectonics
The earth's plates sit on a hot, slightly softened layer of the earth.
Item PT016001: The layer beneath earth's plates mostly consists of slightly softened rock.
What is TRUE about the layer directly below earth's plates?
- It is mostly solid rock.
- It is mostly liquid rock.
- It is mostly solid and liquid rock.
- It is mostly slightly softened rock.
- Distribution of Responses
- Students Responding Correctly
| Group | Correct | Total | Percent |
|---|---|---|---|
| Overall | 263 | 1715 | 15% |
| Grades | |||
| 6–8 | 183 | 1090 | 17% |
| 9–12 | 80 | 620 | 13% |
| Gender | |||
| Male | 123 | 821 | 15% |
| Female | 136 | 876 | 16% |
| Primary Language | |||
| English | 235 | 1566 | 15% |
| Other | 22 | 118 | 19% |