freezethaw action - a process of physical weathering, scree - sharp jagged rock fragements formed from freeze thaw action, carbonation - a process of chemical weathering, carbonic acid - acid formed when water absorbs CO2, karst - landscape of bare surface limestone, Burren - a karst region in Ireland, turlough - seasonal karst lake, stalactite - hangs down from roof of a cave, stalagmite - grows up from floor of a cave, pillar - forms when a stalactite and stalagmite join, clint - flat topped block , grike - cracks between clints, limestone pavement - big area of bare limestone made up of clints and grikes, calcium carbonate - mineral in limestone, calcium bicarbonate - soluble mineral from chemically weathered limestone, CaCO2 - formula for calcium carbonate, H2CO3 - formula for carbonic acid, swallowhole - where a river goes down into a cave system, 10% - how much water expands by when it freezes, regolith - loose weathered material,

weathering

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