Original Project
Weathering, Erosion, and Deposition
Small changes to the surface of the earth caused by wind and water can add up to large changes over long periods…
Item WE059001: Rain wears away very small amounts of the rock of a cliff whenever the rain falls.
How long would it take for rain falling on the solid rock of a cliff to wear away the rock, even by amounts so small that they cannot be seen?
- It takes at least a million years to wear away even very small amounts of the rock.
- It takes about a year to wear away even very small amounts of the rock.
- Rain wears away very small amounts of the rock of a cliff whenever the rain falls.
- Rain is not strong enough to wear away even a very small amount of the rock of a cliff.
- Distribution of Responses
- Students Responding Correctly
| Group | Correct | Total | Percent |
|---|---|---|---|
| Overall | 516 | 1390 | 37% |
| Grades | |||
| 6–8 | 325 | 878 | 37% |
| 9–12 | 188 | 507 | 37% |
| Gender | |||
| Male | 247 | 689 | 36% |
| Female | 257 | 672 | 38% |
| Primary Language | |||
| English | 467 | 1228 | 38% |
| Other | 41 | 127 | 32% |
- Disciplinary Core Ideas
- ESS2.A Wind and water can change the shape of the land.
- Notes
- See 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.