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Learning Goal: We will learn the many ways which Earth's surface is built up and torn down.
Benchmark Objective: SC.6.E.6.1 Describe and give examples of ways in which Earth's surface is built up and torn down by physical and chemical weathering, erosion, and deposition. DOK: Moderate
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Learning Goal: We will learn the many ways which Earth's surface is built up and torn down.
LEVEL 4 = I can…. Analyze the built up and tear down of the Earth’s surface. Predict the future appearance of the land over time. I can also do levels 3-2. LEVEL 3 = I can…. Compare and contrast physical weathering and chemical weathering. I can also do level 2. LEVEL 2 = I can…. Determine the cause and effect of weathering and erosion. LEVEL 1 = I can…. With some assistance/help, I can do some of level 2, otherwise, I am confused and need more time. LEVEL 0 = I am totally lost and confused. I really need help.
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Weathering & Erosion What is Weathering?
Weathering is a destructive force; it naturally breaks rocks down into sediment. Two basic types of weathering: 1) mechanical 2) chemical
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Chemical Weathering Is the changing of a rock or a mineral’s chemical composition by natural forces. Rusting Reaction with acid Formation of clay Acid produced by plants (and animals) can cause biological weathering. For example:
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What is Erosion? Erosion is the weathering of rock and the transportation of sediment. Sediments are broken-down pieces of rock from the weathering of larger rock. For example: Glacier Muddy river Clear mountain river Wind blown sand like in sand dunes
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Erosion (transport) There are 5 main agents of erosion:
*Running Water* Glaciers Wind Gravity Man Weathering has to happen before erosion. The rocks have to be broken into smaller sediments before they can be eroded away. Wind Erosion Glacier Mrs. Degl
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Mechanical Weathering
Mechanical weathering is the breaking down of rock into sediment by water, ice, or wind. Biological Weathering – Another form of mechanical weathering that break down of rocks into sediments by plants and animals. For example: Moving water Waves Freezing water Moving Ice (glaciers) Wind Plants Animals
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Chemical vs. Mechanical Weathering
Plants Chem Rx New subst Rust ex. Nothing new Smaller pieces Wind Ice water Chemical Mechanical Changerocks
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It is the laying down of sediments (after erosion has occurred);
What is Deposition? It is the laying down of sediments (after erosion has occurred); a constructive force. What happens to sediment after deposition? Burial Compaction Cementation Formation of new rock
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Meandering (Curving) River/Stream
Deposition happens on the inside of turns. Erosion happens on the outside of turns. Sediments are traveling the fastest in the center directly below the surface. Straight Flowing River/Stream Running Water
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Show the process and actions
Weathering Erosion Deposition Destructive Destructive Constructive Ice Wedging A river Delta
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Determine the cause and effect of weathering and erosion
causes Effects Delta Running water weathering and erosion
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#1: Predict the future of this land over time.
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#2: Predict the future of this land over time.
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#3: Predict the future of this land over time.
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Learning Goal: We will learn the many ways which Earth's surface is built up and torn down.
LEVEL 4 = I can…. Analyze the built up and tare down of the Earth’s surface. Predict the future appearance of the land over time. I can also do levels 3-2. LEVEL 3 = I can…. Compare and contrast physical weathering and chemical weathering. I can also do level 2. LEVEL 2 = I can…. Determine the cause and effect of weathering and erosion. LEVEL 1 = I can…. With some assistance/help, I can do some of level 2, otherwise, I am confused and need more time. LEVEL 0 = I am totally lost and confused. I really need help.
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Resources INCLUDE Compass Learning Odyssey Thinking Map
SC.6.E.6.1 Resources INCLUDE Compass Learning Odyssey Thinking Map AVID – Cornell Notes
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