Presentation on theme: "Weathering, Erosion, & Soil By: Daniel Cameron. What is erosion, weathering, & soil? Erosion is a process that wears away Earth’s surfaces. Weathering."— Presentation transcript:
What is erosion, weathering, & soil? Erosion is a process that wears away Earth’s surfaces. Weathering is the breaking down of Earth's rocks, soils and minerals. Soil is a natural body of Earth formed from the particles of broken rock
It usually occurs due to transport by wind, water, or ice; by down-slope creep of soil and other material under the force of gravity. Erosion of Alaska’s Coast
Erosion Erosion is a natural process, but it has been increased dramatically by human land use.
Soil Soil differs from its parent rock due to interactions between the lithosphere, hydrosphere, atmosphere, and the biosphere.
1.What are the two types of weathering? http://www.geography4kids.com/files/land_weathering.html http://www.geography4kids.com/files/land_weathering.html 2.What are the four agents of erosion that wear away Earth’s surface? http://geography.about.com/od/physicalgeography/a/erosion.htm http://geography.about.com/od/physicalgeography/a/erosion.htm 3.Most soils have a density of what? http://en.wikipedia.org/wiki/Soil http://en.wikipedia.org/wiki/Soil 4.Erosion is defined as the removal of what? http://www.physicalgeography.net/fundamentals/10w.html http://www.physicalgeography.net/fundamentals/10w.html
Scavenger Hunt continued 5.Where does the energy of erosion come from? http://www.physicalgeography.net/fundamentals/10w.html http://www.physicalgeography.net/fundamentals/10w.html 6.Mineral Weathering that is driven by what? http://courses.soil.ncsu.edu/resources/soil_classification_g enesis/mineral_weathering/mineral_weathering.swf http://courses.soil.ncsu.edu/resources/soil_classification_g enesis/mineral_weathering/mineral_weathering.swf http://courses.soil.ncsu.edu/resources/soil_classification_g enesis/mineral_weathering/mineral_weathering.swf 7.Soil covers a major portion of what? http://42explore.com/dirt.htm http://42explore.com/dirt.htm 8.What is the difference between soil and dirt? http://school.discoveryeducation.com/schooladve ntures/soil/down_dirty.html
Scavenger Hunt continued 9.What kind of erosion formed the Grand Canyon? http://www.geography4kids.com/files/land_erosion.html http://www.geography4kids.com/files/land_erosion.html 10. The word erosion comes from what 2 words? http://www.watersheds.org/earth/erosion.htm http://www.watersheds.org/earth/erosion.htm
Scavenger Hunt Answers 1. Chemical and Physical Weathering 2. Water, wind, ice and waves 3. 1-2 g/cm 4. Soil, sediment, and rock fragments 5. Gravity
Answers 6. Heat and Water 7. Earth 8. Dirt is what you get in your fingernails. Soil is what is under your feet. 9. River Erosion 10. Eat Away