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Igneous Rocks
Hard, crystalline rocks formed from volcanic lava/magma cooling down
Examples are obsidian and granite
Found in upland areas
Metamorphic Rocks
Sedimentary rocks that are exposed to high temperature/pressure
Examples are marble and slate
Found in upland areas
Sedimentary Rocks
Softer rocks made out of compacted sediment like sand and mud
Examples are limestone and chalk
Found in lowland areas
Upland Areas
Mountainous terrains typically made out of igneous and metamorphic rocks as they are hard and resist erosion
Scotland: Northwestern Highlands and Grampian Mountains (Ben Nevis)
Northern England: The Pennines and Lake District (Scafell Pike)
Wales: Snowdonia (Snowdon)
Lowland Areas
Flat terrains made out of sedimentary rocks which are more prone to erosion
Central England: Birmingham, Peterborough, Northampton
South East England: London, Luton, Brighton
Physical Weathering
Water enters the cracks of a rock
Water freezes into ice, which expands in the crack
The crack enlarges as a result