ESS1+(3-4)+-+4

4a __investigating local landforms and how wind, water, or ice have shaped and reshaped them (e.g. severe weather).__ 4b __using or building models to simulate the effects of how wind and water shape and reshape the land__ (e.g., erosion, sedimentation, deposition, glaciation). 4c __identifying sudden and gradual changes that affect the Earth (e.g. sudden change = flood; gradual change = erosion caused by oceans).__