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Slide 2 From RegentsEarth.com Slide 3 Slide 4 6 11 16 21 26 7 12 17 22 27 3 8 13 23 28 4 9 14 19 24 29 5 10 15 20 25 30 2 18 1 win Slide 5 Back What is the predominant form of physical weathering at high elevations in New York State? Ques. #1 Frost action (ice wedging) Ans. Slide 6 Name any 2 types of chemical weathering. Back Ques. #2 Ans. Hydration, carbonation, and oxidation Slide 7 Why would crushing a rock speed up the rate of weathering? Back Ques. #3 Ans. The exposed surface area would increase Slide 8 At which location would stream velocity be greatest? Back Ques. #4 Ans. Location B Slide 9 Which agent of erosion created this sandstone arch? Back Ques. #5 Ans. Wind Slide 10 At which two locations is deposition probably occurring? Back Ques. #6 Locations A and F Ans. Slide 11 Explain the pattern of deposition (in water) shown in the diagram. Back Ques. #7 Ans. The smallest beads were the most dense and the largest were the least dense. Slide 12 Indicate two ways in which rocks are changed by long periods of stream abrasion. Back Ques. #8 Ans. The get rounder and smoother and smaller. Slide 13 Back Ques. #9 Ans. Particle A When dropped into water, which particle would settle at the slowest rate? Slide 14 Name any 2 characteristics of a stream that affect its velocity. Ques. #10 Back Ans. 1) Slope (gradient) 2) Volume (rate of discharge) 3) Shape of the stream channel Slide 15 Name any three methods by which materials are transported by a stream Back Ques. #11 Ans. Floatation, rolling (saltation), suspension, solution Slide 16 Back Ques. #12 Ans. Its a erratic - it was transported by a glacier This rock is different from the bedrock beneath it. What name is given to this type of rock and how did it get there? Slide 17 What accounts for the uneven nature of the cliff face? Back Ques. #13 Ans. Differences in the resistance (hardness) of the rock layers Slide 18 What is the force driving all erosion? Back Ques. #14 Ans. Gravity Slide 19 What term describes particles smaller than clay which may remain in suspension for months before settling? Back Ques. #15 Ans. Colloids Slide 20 Which agent of erosion is responsible for depositing this soil? Back Ques. #16 Ans. Glaciers - the particles are unsorted Slide 21 What is the opposite of erosion? Back Ques. #17 Ans. Uplift (mountain building - orogeny) Slide 22 Back Ques. #18 Ans. It is a meandering stream and the slope is nearly flat. What kind of stream is this and what do you know about the slope of the land where it is flowing. Slide 23 What agent of erosion has affected this area and what evidence do you see that supports your conclusion? Back Ques. #19 Ans. Glaciers - parallel grooves in the rock Slide 24 What is a residual soil? Back Ques. #20 Ans. A soil that has formed from the bedrock immediately beneath it. Slide 25 What kinds of particles will be carried by a stream moving at 150 cm/sec? Back Ques. #21 Ans. Pebbles and everything smaller Slide 26 Name 3 characteristics of particles that affect the rate at which they settle in still water. Back Ques. #22 Ans. Size, shape, density Slide 27 How long will it take for material carried in solution by a stream to settle out once the water stops moving? Back Ques. #23 Ans. Material in solution will never settle Slide 28 What kind of energy is constantly decreasing during the process of erosion? Back Ques. #24 Ans. Potential energy Slide 29 What kind of rock is most affected by acid rain? Back Ques. #25 Ans. Carbonate rocks (limestone and marble) Slide 30 Name four clues that would lead you to believe an area had been subject to glacial erosion. Back Ques. #26 Ans. 1) Parallel grooves in rocks 2) Narrow, deep lakes 3) U-shaped valleys 4) Unsorted sediments 5) Scratched & polished rock 6) Erratics Slide 31 Explain the sequence of events that formed this valley. Back Ques. #27 Ans. A glacier cut a U-shaped valley and after the glacier melted a stream cut a V-shaped valley at the bottom. Slide 32 Back Ques. #28 Ans. Location C (steepest = fastest) At which location would a particle in this stream have the greatest kinetic energy. Slide 33 What are the two different kinds of glaciers? Back Ques. #29 Ans. Continental and valley (Alpine) Slide 34 What is another term for physical weathering? Back Ques. #30 Ans. Mechanical weathering Slide 35 YOURE A WINNER! Running water is the chief agent of erosion on Earth