Weathering Processes Crossword Puzzle

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QUESTIONS LIST:

weathering : breaking down of rocks in place
erosion : removal or rock and sediment from the surface
chelation : chemical weathering because of organic acids
freeze : water expands as it when it turns to ice, before it thaws...
thermal : _ expansion of material because the molecules have more energy
carbonation : dissolution of calcium carbonate because of co2 and water creating carbonic acid
karst : key term for landforms created by dissolving rock
oxidation : chemical reactions involving oxygen, creating 'rust'
hydration : the chemical addition of water to minerals causing them to swell and crumble
hydrolysis : the chemical reaction of water with minerals causing mineral change
solution : the breaking of ionic or molecular bonds of rock by water - can be erosion and transport
crystallisation : salt turning back into a solid when it comes out of solution