the scoop on soil. of what is soil made? sand rocks dried plants dead organisms water air
TRANSCRIPT
![Page 1: The Scoop on Soil. Of What is Soil Made? sand rocks dried plants dead organisms water air](https://reader036.vdocument.in/reader036/viewer/2022062301/56649ebb5503460f94bc308c/html5/thumbnails/1.jpg)
The Scoop on Soil
![Page 2: The Scoop on Soil. Of What is Soil Made? sand rocks dried plants dead organisms water air](https://reader036.vdocument.in/reader036/viewer/2022062301/56649ebb5503460f94bc308c/html5/thumbnails/2.jpg)
Of What is Soil Made?
• sand• rocks• dried plants• dead organisms• water• air
![Page 4: The Scoop on Soil. Of What is Soil Made? sand rocks dried plants dead organisms water air](https://reader036.vdocument.in/reader036/viewer/2022062301/56649ebb5503460f94bc308c/html5/thumbnails/4.jpg)
What are Some Processes that Form Soil?
• Decay of plant matter• Settling of volcanic ash• Transport by rain, streams, and rivers• Deposition of sediments in rivers and lakes• Weathering• Erosion
![Page 5: The Scoop on Soil. Of What is Soil Made? sand rocks dried plants dead organisms water air](https://reader036.vdocument.in/reader036/viewer/2022062301/56649ebb5503460f94bc308c/html5/thumbnails/5.jpg)
Decay of Plants
![Page 6: The Scoop on Soil. Of What is Soil Made? sand rocks dried plants dead organisms water air](https://reader036.vdocument.in/reader036/viewer/2022062301/56649ebb5503460f94bc308c/html5/thumbnails/6.jpg)
Settling of Volcanic Ash
![Page 7: The Scoop on Soil. Of What is Soil Made? sand rocks dried plants dead organisms water air](https://reader036.vdocument.in/reader036/viewer/2022062301/56649ebb5503460f94bc308c/html5/thumbnails/7.jpg)
Transport by Rain
![Page 8: The Scoop on Soil. Of What is Soil Made? sand rocks dried plants dead organisms water air](https://reader036.vdocument.in/reader036/viewer/2022062301/56649ebb5503460f94bc308c/html5/thumbnails/8.jpg)
Deposition of Sediment
![Page 9: The Scoop on Soil. Of What is Soil Made? sand rocks dried plants dead organisms water air](https://reader036.vdocument.in/reader036/viewer/2022062301/56649ebb5503460f94bc308c/html5/thumbnails/9.jpg)
Weathering
• http://video.yahoo.com/watch/1794281/5931740
![Page 10: The Scoop on Soil. Of What is Soil Made? sand rocks dried plants dead organisms water air](https://reader036.vdocument.in/reader036/viewer/2022062301/56649ebb5503460f94bc308c/html5/thumbnails/10.jpg)
There are Two Main Types of Weathering
Mechanical
Chemical
![Page 11: The Scoop on Soil. Of What is Soil Made? sand rocks dried plants dead organisms water air](https://reader036.vdocument.in/reader036/viewer/2022062301/56649ebb5503460f94bc308c/html5/thumbnails/11.jpg)
In the next 7 slides, try to determine what caused the weathering.
![Page 12: The Scoop on Soil. Of What is Soil Made? sand rocks dried plants dead organisms water air](https://reader036.vdocument.in/reader036/viewer/2022062301/56649ebb5503460f94bc308c/html5/thumbnails/12.jpg)
![Page 13: The Scoop on Soil. Of What is Soil Made? sand rocks dried plants dead organisms water air](https://reader036.vdocument.in/reader036/viewer/2022062301/56649ebb5503460f94bc308c/html5/thumbnails/13.jpg)
![Page 14: The Scoop on Soil. Of What is Soil Made? sand rocks dried plants dead organisms water air](https://reader036.vdocument.in/reader036/viewer/2022062301/56649ebb5503460f94bc308c/html5/thumbnails/14.jpg)
![Page 15: The Scoop on Soil. Of What is Soil Made? sand rocks dried plants dead organisms water air](https://reader036.vdocument.in/reader036/viewer/2022062301/56649ebb5503460f94bc308c/html5/thumbnails/15.jpg)
![Page 16: The Scoop on Soil. Of What is Soil Made? sand rocks dried plants dead organisms water air](https://reader036.vdocument.in/reader036/viewer/2022062301/56649ebb5503460f94bc308c/html5/thumbnails/16.jpg)
![Page 17: The Scoop on Soil. Of What is Soil Made? sand rocks dried plants dead organisms water air](https://reader036.vdocument.in/reader036/viewer/2022062301/56649ebb5503460f94bc308c/html5/thumbnails/17.jpg)
![Page 18: The Scoop on Soil. Of What is Soil Made? sand rocks dried plants dead organisms water air](https://reader036.vdocument.in/reader036/viewer/2022062301/56649ebb5503460f94bc308c/html5/thumbnails/18.jpg)
Erosion
• http://video.yahoo.com/watch/1794382/5933084
![Page 19: The Scoop on Soil. Of What is Soil Made? sand rocks dried plants dead organisms water air](https://reader036.vdocument.in/reader036/viewer/2022062301/56649ebb5503460f94bc308c/html5/thumbnails/19.jpg)
Erosion from Gravity
![Page 20: The Scoop on Soil. Of What is Soil Made? sand rocks dried plants dead organisms water air](https://reader036.vdocument.in/reader036/viewer/2022062301/56649ebb5503460f94bc308c/html5/thumbnails/20.jpg)
Erosion by Wind
![Page 21: The Scoop on Soil. Of What is Soil Made? sand rocks dried plants dead organisms water air](https://reader036.vdocument.in/reader036/viewer/2022062301/56649ebb5503460f94bc308c/html5/thumbnails/21.jpg)
Erosion by Water
![Page 22: The Scoop on Soil. Of What is Soil Made? sand rocks dried plants dead organisms water air](https://reader036.vdocument.in/reader036/viewer/2022062301/56649ebb5503460f94bc308c/html5/thumbnails/22.jpg)
Erosion by Ice
![Page 23: The Scoop on Soil. Of What is Soil Made? sand rocks dried plants dead organisms water air](https://reader036.vdocument.in/reader036/viewer/2022062301/56649ebb5503460f94bc308c/html5/thumbnails/23.jpg)
What’s good about erosion?• New soil is formed. Erosion results in deposits of
dark, fertile soil, perfect for growing crops.• Erosion reveals marvels of nature such as
mountains, sandstone arches, and polished cliffs.• Without erosion, rock debris would simply pile up.• Soil erosion may slow down global warming by
carrying carbon into wetlands where it is stored for long periods of time. (theory)
![Page 24: The Scoop on Soil. Of What is Soil Made? sand rocks dried plants dead organisms water air](https://reader036.vdocument.in/reader036/viewer/2022062301/56649ebb5503460f94bc308c/html5/thumbnails/24.jpg)
What’s bad about erosion?• Land can be stripped of soils needed for food to
grow.• Landslides can destroy whatever is in their paths.• Rivers can be filled with silt, disrupting their
ecosystems.• Erosion causes cracks, gaps, and ditches in the
landscape.• When soil erodes, it cannot support many types
of plant life.
![Page 25: The Scoop on Soil. Of What is Soil Made? sand rocks dried plants dead organisms water air](https://reader036.vdocument.in/reader036/viewer/2022062301/56649ebb5503460f94bc308c/html5/thumbnails/25.jpg)
What can be done to prevent erosion?
• Plant trees and bushes along riverbanks to hold soil in place.
• Plant trees that will block the wind.• Use careful, smart farming practices that
won’t disturb topsoil.• Use common-sense approaches to
construction, such as don’t build on steep slopes.
• When hiking, stay on trails.
![Page 26: The Scoop on Soil. Of What is Soil Made? sand rocks dried plants dead organisms water air](https://reader036.vdocument.in/reader036/viewer/2022062301/56649ebb5503460f94bc308c/html5/thumbnails/26.jpg)
Review
• Answer: Weathering is breaking down rock into pebbles and sand by physical or chemical processes.
1. What is weathering?
![Page 27: The Scoop on Soil. Of What is Soil Made? sand rocks dried plants dead organisms water air](https://reader036.vdocument.in/reader036/viewer/2022062301/56649ebb5503460f94bc308c/html5/thumbnails/27.jpg)
2. Give at least three examples of weathering processes.
• Answer: Wind, water, ice, heating, cooling, acid rain.
![Page 28: The Scoop on Soil. Of What is Soil Made? sand rocks dried plants dead organisms water air](https://reader036.vdocument.in/reader036/viewer/2022062301/56649ebb5503460f94bc308c/html5/thumbnails/28.jpg)
3. What is erosion?
• Answer: Erosion is the movement of Earth materials by processes such as wind, water, ice, and gravity.
![Page 29: The Scoop on Soil. Of What is Soil Made? sand rocks dried plants dead organisms water air](https://reader036.vdocument.in/reader036/viewer/2022062301/56649ebb5503460f94bc308c/html5/thumbnails/29.jpg)
4. Explain how the formation of soil is related to weathering of
rock.• Answer: Rocks are broken into small pieces by
the process of weathering. Then the small particles become part of the soil.
![Page 30: The Scoop on Soil. Of What is Soil Made? sand rocks dried plants dead organisms water air](https://reader036.vdocument.in/reader036/viewer/2022062301/56649ebb5503460f94bc308c/html5/thumbnails/30.jpg)
5. How does deposition of sediments relate to soil formation?• Answer: As sediments fall to the bottom of
rivers and lakes, they build up deposits to form soil.
![Page 31: The Scoop on Soil. Of What is Soil Made? sand rocks dried plants dead organisms water air](https://reader036.vdocument.in/reader036/viewer/2022062301/56649ebb5503460f94bc308c/html5/thumbnails/31.jpg)
6. Name at least two forces that cause erosion.
• Answer: Wind, water, gravity.
![Page 32: The Scoop on Soil. Of What is Soil Made? sand rocks dried plants dead organisms water air](https://reader036.vdocument.in/reader036/viewer/2022062301/56649ebb5503460f94bc308c/html5/thumbnails/32.jpg)
7. What is soil?
• Soil is the thin living skin that covers the land. It goes down into the ground just a short way. Soil is more than rock particles. It includes all the living things and the materials they make or change. Soil is a precious resource that sustains life on earth.
![Page 33: The Scoop on Soil. Of What is Soil Made? sand rocks dried plants dead organisms water air](https://reader036.vdocument.in/reader036/viewer/2022062301/56649ebb5503460f94bc308c/html5/thumbnails/33.jpg)
8. Name at least three layers of soil.
• Organic layer, topsoil, subsoil, rock
![Page 34: The Scoop on Soil. Of What is Soil Made? sand rocks dried plants dead organisms water air](https://reader036.vdocument.in/reader036/viewer/2022062301/56649ebb5503460f94bc308c/html5/thumbnails/34.jpg)
9. What can you personally do to help prevent erosion?
• Plant trees and bushes along riverbanks to hold soil in place.
• When hiking, stay on trails.
![Page 35: The Scoop on Soil. Of What is Soil Made? sand rocks dried plants dead organisms water air](https://reader036.vdocument.in/reader036/viewer/2022062301/56649ebb5503460f94bc308c/html5/thumbnails/35.jpg)
What process causes landslide erosion?
• gravity
![Page 36: The Scoop on Soil. Of What is Soil Made? sand rocks dried plants dead organisms water air](https://reader036.vdocument.in/reader036/viewer/2022062301/56649ebb5503460f94bc308c/html5/thumbnails/36.jpg)
CreditsThe Rock Cycle http://www.geolsoc.org.uk/rockcycleSoil Forming Factors http://soil.gsfc.nasa.gov/soilform/parmat.htmDirt: The Scoop on Soil (Amazing Science) [Paperback]Rosinsky, Natalie M (Author)The Open Door Website http://www.saburchill.com/lab/field/field02.htmlSoil Profile http://library.thinkquest.org/J003195F/newpage5.htmSoil is not dirt http://www.wsu.edu/gened/learn-modules/top_agrev/2-soil/soil1.htmlThe Dirt on Soil http://school.discoveryeducation.com/schooladventures/soil/down_dirty.htmlWhat is soil? http://www.blogdivvy.com/growing-vegetables/what-is-soil.htmGeography4Kids.com http://www.geography4kids.com/files/land_weathering.htmlTree Hugger http://www.treehugger.com/files/2008/08/greenland-crack-up.php Deadly Landslides in Guatamala http://www.guardian.co.uk/world/gallery/2010/sep/06/guatemala-landslidesWikipediaWeathering and Soils http://www.iamtonyang.com/0407/oak_leaves.jpgSoil Forming Factors http://soil.gsfc.nasa.gov/soilform/deposits.htmHow Stuff Works http://science.howstuffworks.com/dictionary/petrology-terms/volcanic-ash.htmNorth Coast Journal http://www.northcoastjournal.com/011603/cover0116.htmlJust the facts http://www.cfact.org/a/765/Ecological-benefits-of-soil-erosion