SSA Review (Earth's Structures: Big Idea 6)

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What is the rock cycle?

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The rock cycle is a continuous process that describes the transformation of rocks through various stages: igneous, sedimentary, and metamorphic, influenced by processes like weathering, erosion, and heat.

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What is chemical weathering?

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Chemical weathering is the process by which rocks are broken down by chemical reactions, often involving water and acids, leading to the dissolution of minerals.

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What is physical weathering?

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Physical weathering is the mechanical breakdown of rocks into smaller pieces without changing their chemical composition, often caused by temperature changes, freeze-thaw cycles, or abrasion.

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What is erosion?

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Erosion is the process by which soil and rock are removed from one location and transported to another, often by wind, water, or ice.

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What is deposition?

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Deposition is the process by which sediments, soil, and rocks are added to a landform or land mass, often occurring in bodies of water or at the mouth of rivers.

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What are dunes?

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Dunes are hills of sand formed by the wind, often found in deserts or along coastlines, and can help protect inland areas from floods and storm surges.

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What is the inner core of the Earth?

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The inner core is the solid, dense center of the Earth, composed mainly of iron and nickel, and is extremely hot, with temperatures reaching up to 5,700 degrees Celsius.

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What is the mantle?

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The mantle is the layer of the Earth located between the crust and the outer core, composed of semi-solid rock that flows slowly over time.

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What is the crust?

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The crust is the outermost layer of the Earth, consisting of solid rock and soil, where we live, and is relatively thin compared to the other layers.

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What is tectonic activity?

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Tectonic activity refers to the movement of the Earth's plates, which can cause earthquakes, volcanic eruptions, and the formation of mountains.