Landforms and Physical Systems Answers
Analyze the photo below and answer the question that follows.
Responses may vary but should include some or all of the following information:This photo shows a canyon. Canyons are very deep valleys, and they usually have high walls. Often, canyons are formed when rivers or streams cut through rock. The natural forces of water cause weathering, which breaks down rock. Then, they erode the rock by carrying it away downstream. This carves out a canyon.
Which of the following lists includes only landforms?
Using at least three sentences, describe the process of weathering, and explain how it can happen physically or chemically.
Responses may vary but should include some or all of the following information:Weathering is a very slow process that happens when rocks are exposed to the Earth’s atmosphere and other natural elements. Weathering causes rock to break down into sediment or soil, and it can happen in different ways. Physical weathering takes place when extreme temperatures or physical forces cause rocks to break apart slowly. Chemical weathering happens when chemical changes cause rocks to break down.
Analyze the photo below and answer the question that follows. Photo by Doc Searls The body of water in the photo above is formed at the mouth of a river where saltwater and freshwater meet. Which body of water is shown in this photo?
Analyze the photo below and answer the question that follows.
Responses may vary but should include some or all of the following information:The natural process that moved this beach is called erosion. Erosion happens when natural forces carry away soil, sediment, and rock. In this case, waves caused the erosion. Over the course of more than 100 years, waves hit the shoreline, carrying away sand and soil. This moved the shoreline further inland, making it appear like the lighthouse moved.
Analyze the photo below and answer the question that follows.Photo by Jay Galvin In the photo above, a large glacier is creating a valley. The glacier is carrying sediment downhill. Which of the following processes best explains what is happening in this photo?
Describe the four natural forces that can cause erosion. How do they work? Explain your answer in at least three sentences.
Responses may vary but should include some or all of the following information:Erosion is the process of rock and sediment being carried away from its original location. Gravity can cause erosion, as broken-down rock can fall or move downhill. Another force is wind; wind can crash against rock, sand, or sediment, and carry it through the air. Water can also cause erosion, as waves, rivers, or streams pick up sediment and move it from place to place. Finally, ice can cause erosion; for instance, glaciers carve out valleys by pushing aside rock and sediment.
Analyze the photo below and answer the question that follows.
Responses may vary but should include some or all of the following information:This photo shows a delta. Rivers create deltas by carrying eroded sediment toward the ocean and fanning out around this sediment. The force of flowing water erodes rocks and riverbanks upstream, carrying soil and sediment toward the sea.
Analyze the photo below and answer the question that follows.Photo by Joseph L. Hartman The photo above shows a flat, open space. Which landform is shown in this photo?
Analyze the photo below and answer the question that follows. Photo by Mahlum In the photo above, lichen and fungi are slowly causing these rocks to break down. They are doing this by slowly changing the material the rocks are made of. Which of the following processes is taking place?
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