Original Project
Weathering, Erosion, and Deposition
The surface of the earth is changed as rock material is broken, carried, and dropped in new locations. -AND- Sm…
Item WE019003: Whenever wind moves against the solid rock of a mountain, a little bit of the rock is worn away, even if you cannot see it.
Which of the following statements describes how long it takes for wind to wear away the solid rock of a mountain?
- Whenever wind moves against the solid rock of a mountain, a little bit of the rock is worn away, even if you cannot see it.
- Wind can wear away the solid rock of a mountain, but it would take about a hundred years or more to cause any change to the mountain, no matter how small.
- Wind can wear away the solid rock of a mountain, but it would take millions of years or more to cause any change to the mountain, no matter how small.
- Wind cannot wear away solid rock.
- Distribution of Responses
- Students Responding Correctly
| Group | Correct | Total | Percent |
|---|---|---|---|
| Overall | 783 | 1853 | 42% |
| Grades | |||
| 6–8 | 475 | 1142 | 42% |
| 9–12 | 306 | 705 | 43% |
| Gender | |||
| Male | 373 | 907 | 41% |
| Female | 397 | 910 | 44% |
| Primary Language | |||
| English | 706 | 1635 | 43% |
| Other | 61 | 167 | 37% |
- NRC Framework
- Grade 5 ESS2.A Water, ice, wind, living organisms, and gravity break rocks, soils, and sediments into smaller particles and move them around.
- Notes
- NGSS acknowledges that Earth's systems "operate over fractions of a second to billions of years," (Framework, p. 181), but it does not specifically say how long it takes for the erosion of rock to occur. See also NGSS Performance Expectation MS-ESS2-2: Construct an explanation based on evidence for how geoscience processes have changed Earth's surface at varying time and spatial scales.