Soil and Glaciers Essays

619 Words Mar 28th, 2014 3 Pages
Soil and Glaciers Worksheet

From Visualizing Earth Science, by Merali, Z., and Skinner, B. J, 2009, Hoboken, NJ: Wiley. Copyright 2009 by Wiley. Adapted with permission.

Part 1

Size grades of soil are named sand, silt, and clay, which includes colloids. Size grades are defined using the metric system. Use Figure 4.8 from the textbook to fill in the following chart. Specify the type and size and description of the particle. In some cases, particle size will be less than some value or greater than another value. For instance, gravel is greater than 2.0 mm.

Name
Size
Description
Gravel
>2.0 mm
A loose aggregation of small water-worn or pounded stones.
Sand
0.05mm
A loose granular substance, resulting from the erosion
…show more content…
Regolith comes from the underlying rock whethers in its place. Transported develops on sediment that has been transported regolith develops on sediment.
Climate
Soils with poorly or well-developed horizons causes changes in the soil.
Living organisms
Micro-organisms like bacteria and fungi break the organic matter down. Animals like worms, mice, moles burrow in soil which help mix components and also provide ways for water and air to pass.
Topography
The slope helps the ability of water to soak into regolith.
Time
It takes thousands of years for a mature soil to develop.

Part 4

Investigate two ways in which water shortages, erosion, water diversion, floods or contamination of a water resource, or other water processes have affected human history. How did humankind meet the challenges of the impacts? Part 5

In 150 words, how do glaciers form, grow, and shrink throughout time? Cite any references used and provide a References page.

~ Glaciers are formed when snow builds up for several years from snowfall that exceeds snow melt. Over time, as new snow compresses the existing snow, the weight causes the snow underneath to turn to ice. The hardening effect is similar to what happens when you pack a snowball in your hand. The pressure from additional layers of snow builds for up to thousands of years. Glaciers can grow and shrink as a result of changes in the amount of snowfall or changes in the amount of melting because of

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