417 words used in the labs.

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Term

Mechanical weathering

Also written: Physical weathering

The physical breakdown of rock into smaller pieces without changing its mineral composition. Frost action and expansion or unloading can contribute. The fragments remain near their source until erosion transports them away.

What to look for

Blockfield on Foel Fras, Wales. Physical weathering breaks bedrock into angular fragments without changing its minerals.

Related labs

Weathering →

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