AAAS Science Assessment ~ Topics ~ Weathering, Erosion, and Deposition ~ Item WE027002

Which of the following is TRUE about ways that wind and water can change the earth's surface over time?

Wind and water can wear away mountains but cannot make valleys deeper.
Wind and water can make valleys deeper but cannot wear away mountains.
Wind and water can make valleys deeper and can wear away mountains.
Wind and water can change the earth’s surface, but not by wearing away mountains or by making valleys deeper.

Distribution of Responses

Percent of students responding correctly

Overall	60%
Grades 6–8	59%
Grades 9–12	61%
Male	61%
Female	60%
Primary Language is English	61%
Primary Language is not English	48%

AAAS Science Assessment ^beta