4-ESS2-1 Earth's Systems
Tools For Teachers, Families, and Students
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NGSS Standard 4-ESS2-1
Students who demonstrate understanding can: Make observations and/or measurements to provide evidence of the effects of weathering or the rate of erosion by water, ice, wind, or vegetation. [Clarification Statement: Examples of variables to test could include angle of slope in the downhill movement of water, amount of vegetation, speed of wind, relative rate of deposition, cycles of freezing and thawing of water, cycles of heating and cooling, and volume of water flow.] [Assessment Boundary: Assessment is limited to a single form of weathering or erosion.]
Weathering Defined: Where rock is worn away or broken down.
Erosion Defined: Where rock or earth is carried away.
Deposition Defined: Dropped
National Geographic: Amazing Flight Over the Grand Canyon
Weathering, Erosion and Deposition.(3rd/4th grade teach)
Ties weathering, erosion and deposition together as one continuing process for younger elementary
Weathering, Erosion and Deposition.(3rd/4th grade teach) from Moira Whitehouse
PBS Learning Media:
The Grand Canyon: Evidence of Earth's Past
How Caves Form
Weathering, Erosion, and Deposition
Weathering, Erosion, Deposition, (WED) Chant 4th Grade
5 – 6 – 7 – 8
Break, move, drop.
Break, move, drop.
All of these processes happen to a rock.
Break, move, drop.
Break, move, drop.
All of these processes happen to a rock.
Weathering breaks it.
Erosion takes it, and when the motion stops, deposition drops.
Wind and water moving around.
Gravity pulls it down.
Break, move, drop.
Break, move, drop.
All of these processes happen to a rock.
Break, move, drop.
Erosion Lab
Erosion's Effect on Different Land Forms
EmRiver Introduction:
Erosion and deposition in a self-forming model river channel
Erosion by Water
Watch as a stream is formed, slum occurs, and the path of the stream changes as debris is eroded away and deposited downstream.
