Weathering and Erosion Quiz | Baamboozle - Baamboozle

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Name two agents of erosion.

Rivers and the sea (also wind and ice).

What is erosion?

The wearing away and moving of rocks by rivers, wind, ice

How do glaciers cause erosion?

By plucking rocks and scraping the land.

What is vertical erosion?

River cuts deeper.

Name one feature in the youthful stage of a river.

V-shaped valley.

Where does onion-skin weathering usually happen?

Hot deserts.

What is hydraulic action?

The force of water hitting against the banks and bed of the river.

What is abrasion in a river?

Stones and rocks carried by the river scrape the riverbed and banks.

Why are V-shaped valleys narrow and steep?

River cuts downwards.

What is solution in a river?

When minerals dissolve in the water and are carried away.

What helps shape the sides of a V-shaped valley?

Weathering and mass movement.

What is attrition?

Stones in the river smash into each other and become smoother and smaller.

Which rock is easily dissolved by rainwater?

Limestone.

What is the main difference between weathering and erosion?

Weathering breaks rocks down erosion moves them away.

What shape valley does a young river make?

V-shaped.

Name two types of weathering.

Mechanical (physical) and chemical.

What is freeze-thaw weathering?

Water gets into cracks freezes expands and breaks the rock

How do V-shaped valleys form?

River erodes down sides collapse.

What is onion-skin weathering?

Outer rock peels off.

What is biological weathering?

Plants or animals breaking down rocks eg. roots

What is chemical weathering?

When rain (often slightly acidic) dissolves certain rocks like limestone.

Why does freeze-thaw happen more in mountains?

Because it is cold and water can freeze easily.

What is weathering?

The breaking down of rocks where they are.