U2L1 Weathering, Erosion, and Deposition WYNTK
No description yet. This curated deck is ready for daily study.
Card preview (12)
What happens to a stream’s power when water volume and speed increase (like during a heavy storm)?
Its energy increases, allowing it to carry larger and heavier sediment that it couldn’t before.
What causes a stream or river to deposit sediment?
When it slows down, usually on flat plains or where it enters a lake or ocean, creating landforms like alluvial fans and deltas.
How does slope affect erosion by water?
A steeper slope increases water speed and erosion power.
In a meandering river, where is erosion strongest?
On the outside of the curve, where the water moves fastest. Sediment is deposited on the inside where the water is slower.
What agent forms sand dunes?
Wind—it picks up sand and piles it into dunes.
When wind slows, which sediment drops first?
The heaviest and largest particles.
What conditions are needed for glaciers to form?
Cold climates where more snow falls than melts each year. Over time, the snow compacts into ice.
What causes mass movements like landslides, rockfalls, and creep?
Gravity—it pulls rock and soil downhill.
What is weathering?
The breaking down of rock into smaller pieces (sediment) in place.
What is erosion?
The movement of sediment from one place to another by water, wind, ice, or gravity.
What is deposition?
The dropping or settling of sediment when the agent of erosion loses energy.
What’s the “story of a rock”?
It’s broken down (weathering), carried away (erosion), and dropped somewhere new (deposition).