Weathering and Rocks Revision Crossword Puzzle
Weathering and Rocks Revision crossword puzzle printable. Download, print and start playing. You can add your own words to customize or start creating from scratch.
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QUESTIONS LIST: granite : a rock prone to hydrolysis due to the presence of feldspar, carbonation : caco3 reacts with acid water and forms calcium bicarbonate which is soluble and removed in solution, oxidation : iron compounds react with oxygen to produce a reddish brown coating, limestone : a rock composed of caco3 which is susceptible to carbonation, tor : an isolated mass of rock, often granite, left standing on a hilltop after the surrounding rock has been broken down and removed, humic acids : acids which are derived from the decomposition of vegetation and help to weather rocks. (2), regolith : unconsolidated material found on the earth's surface including soil, scree, weathered bedrock and deposited material, grikes : the large joints in limestone which are widened by weathering on limestone pavements, peltier : diagram which shows how weathering is related to moisture availability and average annual temperature, salt : decomposition of rock by solutions of salt. if temps are between 26-28 degrees c, na2so4 and na2co3 expand by 300% (..........?crystallisation), hydration : when certain minerals absorb water, expand and change. shale and mudstone increase in volume by 100% when the clay minerals absorb h2o, aspect : the direction a slope faces, granular : different minerals in rocks expand and contract at different temperatures which leads to weathering. (...............?disintegration)), freeze thaw : also called frost shattering - when water in joints freezes and expands by about 10% (2)