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Physical Processes. CRITERIA FOR SUCCESS : Describe the physical processes that affect the environment. Examine the physical processes that affect the lithosphere, atmosphere, hydrosphere, and biosphere.
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Physical Processes • CRITERIA FOR SUCCESS: • Describe the physical processes that affect the environment. • Examine the physical processes that affect the lithosphere, atmosphere, hydrosphere, and biosphere. • Describe the characteristics of different landforms and the physical processes that cause their development. Learning Goal 2: Describe how internal and external physical processes create landforms and shape patterns in the physical environment.
Essential ? (Left side of notes) • What are the physical processes that affect the Earth’s environment? • Internal Forces, such as… • External Forces, such as…
Internal Physical Processes • Internal processes are events that occur within (under) the earth’s surface, specifically plate tectonics. • Volcanoes, mountains, rift valleys, and islands are the result of these processes.
Tectonic forces • The earth’s crust (lithosphere) is made up of tectonic plates that move over the hot flexible layer of the upper mantle. As the plates move they shape the physical features of the earth. • Tectonic plates are large slabs of ? And they? • http://www.youtube.com/watch?v=PCpeF1ZJ7_M
External Physical Processes • External processes are those that occur outside the earth’s crust including… • Weather • Weathering vs. Erosion • Deposition-deltas • Soil building
Weather • Weather is the condition of the atmosphere (temperature and precipitation) at a particular location and time.
Weathering vs. Erosion • Weathering breaks down rock. • Erosion then occurs when weathered material (soil, rocks, etc.) is moved by the action of wind, water, and ice. Erosion carries the material away. • Material (soil, rocks, etc) is moved by one of these agents to another location. http://www.youtube.com/watch?v=lyysL02ZvQ8
Soil-Building Process • Soil is… • the loose mixture of weathered rock, organic matter, air, and water that support plant vegetation. • Weathering and erosion are part of the process that builds soil. • SOIL-Building: • Soil is What? • How is it created? • Essential ?= Why is soil important?
Landforms • Landforms are naturally formed features on the surface (lithosphere) of the earth. • There are many different types of landforms, both oceanic (water) and continental (land). The major feature that designates different landforms is relief. • What is RELIEF??