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by BlastRoom
Identify how sediment is carried, dropped, and shaped by Earth’s surface processes.
#erosion#us_grade_6_science
20 questions
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After a storm, a muddy river cuts its banks and carries silt downstream. Is this erosion or deposition, and why?
A river enters calm ocean water, slows, and muddy sediment settles into a widening fan at its mouth. What agent carried the sediment there?
A fast stream leaves a narrow canyon and enters a flat basin. The current slows from 40 cm/s to 5 cm/s. Where is deposition most likely?
Loose sand grains on a dry beach are lifted and blown inland during a strong breeze. Is this erosion or deposition, and why?
A valley has scratched bedrock and an unsorted ridge of rocks left after a glacier melted. What agent moved and later dropped the material?
Floodwater spreads over land beside a river and slows, leaving thin layers of silt after each flood. What change is being built?
A glacier moves down a valley, then melts and leaves a ridge of mixed clay, sand, and boulders. Is this erosion or deposition?
Sand dunes grow at the edge of a dry lake bed after each big storm. What is the main agent carrying the sand to the dunes?
At a river mouth, muddy water slows in the sea and drops its sediment, building a fan of new land crossed by branching channels. What is this landform called?
Waves hit a rocky cliff, break off small pieces, and carry them along the shore. Is this erosion or deposition, and why?
After heavy rain, soil slides down a steep bare hillside onto a road, and no stream channel is present. What main agent moved the soil?
Strong wind carries sand until it meets a fence. The air slows and sand piles on the downwind side. What process made the pile?
A rain-soaked slope collapses, and rocks move downhill to the valley floor. Is this erosion or deposition at the moment the rocks move?
During a storm, loose soil from a school garden is carried into a gutter and then a stream. What agent is carrying the sediment?
Before it melted back, this glacier slid down the valley, plucking rocks from the valley walls and grinding the bedrock beneath it. What was the moving glacier doing?
A mountain stream enters a wide flat valley, spreads out, and drops gravel near the valley edge. Is this erosion or deposition?
Pebbles on a rocky shore move back and forth each day, become rounded, and pile into a beach ridge. What agent carries and drops them?
A narrow canyon grows deeper where a fast stream carries sand and gravel that scrape the channel bottom. What step caused the change?
Desert wind weakens behind shrubs, and sand settles into small mounds instead of staying airborne. Is this erosion or deposition?
A muddy river flowing quickly around a bend carries clay and sand away from the outside bank. Is this erosion or deposition?
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How Soil Forms and What It Holds
20 questions
