Geography 0.0 / 5 ? GeographyCoastal zonesGCSEEdexcel Created by: aoojCreated on: 30-11-15 18:34 What is weathering? The disintergration or decomposition of rock, often caused by the weather but not always 1 of 9 Name 3 types of weathering - Biological Weathering - Chemical Weathering - Physical Weathering 2 of 9 Define Biological Weathering Involves the actions of flora and fauna. Plant roots are effective at growing and expanding in cracks in the rocks. 3 of 9 Define Physical Weathering Also known as mechanica weathering. Involves the disintergration of rocks without any chemical changes taking place. 4 of 9 Define Chemical Weathering A Chemcal change occurs when weatherng takes place. Rain water (slightly acidic) can slow dissolve certain rocks and minerals. 5 of 9 Give a result of physical weathering Piles of angular rock fragments called "scree' found at the foot of bare rocky outcrops 6 of 9 What happens to minerals and particles of rock not affected by chemical weathering? They are left behind to form a fine clay deposit. 7 of 9 Give 3 types of mechanical/physical weathering? - Freeze Thaw Weathering - Exfoliation Weathering 8 of 9 Give a type of chemical weathering Carbonation 9 of 9
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