Weathering and Soil Crossword Puzzle

QUESTIONS LIST:

• limonite : an amorphous hydrated ferric oxide, varying in color from dark brown to yellow, used as an ore of iron.
• residual soil : soil formed by rock decay and left as a residue after the leaching out of the more soluble products.
• pressure release : overlying materials are removed, which causes underlying rocks to expand and fracture parallel to the surface.
• soil horizon : any of the series of distinctive layers found in a vertical cross section of any well-developed soil.
• hematite : is a common iron oxide with the formula fe2o3 and is widespread in rocks and soils.
• soil : the portion of the earth's surface consisting of disintegrated rock and humus.
• sheet joints : are surface-parallel fracture systems in rock, and often leading to erosion of concentric slabs.
• frost wedging : is a form of physical weathering that involves the repeated freezing and thawing of water in areas with extremely cold weather.
• transported soil : form from weathered material deposits, which are transported by natural forces to a new site, away from the site of origin.
• erosion : the process by which the surface of the earth is worn away by the action of water, glaciers, winds, waves, etc.
• frost heaving : s an upwards swelling of soil during freezing conditions caused by an increasing presence of ice as it grows towards the surface.
• laterite : a reddish ferruginous soil formed in tropical regions by the decomposition of the underlying rocks.
• frost action : the weathering process caused by cycles of freezing and thawing of water in surface pores, cracks, and other openings.
• exfoliation : the peeling away of sheets of rock millimeters to meters in thickness from a rock's surface due a range of physical and chemical processes during exhumation and weathering .
• loam : a rich, friable soil containing a relatively equal mixture of sand and silt and a somewhat smaller proportion of clay.
• weathering : the various mechanical and chemical processes that cause exposed rock to decompose.
• clay mineral : any of a group of hydrous aluminum silicate minerals, as kaolinite, illite, and montmorillonite, that constitute the major portion of most clays.