NSES Content Standard D  Earth and Space Science: Changes in the Earth and sky  Grades K-4, page 134  The surface of the earth changes. Some changes are due to slow processes, such as erosion and weathering, and some changes are due to rapid processes such as landslides, volcanoes, and earthquakes.

 
Benchmark 4C The Physical Setting: Processes that Shape the Earth
Grades 3-5, page 72
Waves, wind, water, and ice shape and reshape the earth's land surface by eroding rock and soil in some areas and depositing them in other areas, sometimes in seasonal layers.

Benchmark 4C The Physical Setting: Processes that Shape the Earth
Grades 6-8, page 73
Some changes in the earth's surface are abrupt (such as earthquakes and volcanic eruptions) while other changes happen very slowly (such as uplift and wearing down of mountains). The earth's surface is shaped in part by the motion of water and wind over very long times, which act to level mountain ranges.