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Cards In This Set
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What are the Earth system four major parts?
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Atmosphere
hydrosphere biosphere geosphere |
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Greek prefixes:
atmo = hydro = bio = geo = |
Gas
water life earth |
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The atmosphere, hydrosphere, biosphere, and geosphere all ____________to change the Earth's surface.
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Interact with one another
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Describe the Earth's relationship with time.
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Earth's surface can be described as a surface that changes slowly over time.
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How does the hydrosphere affect the geosphere?
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A river slowly wears away rock to form a canyon.
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How does the atmosphere affect the geosphere?
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Strong wind blows sand into sand dunes.
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What is a mineral?
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A mineral is a substance that: is naturally formed, made of atoms arranged in a pattern, and has a crystal structure.
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How is a mineral identified?
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By its properties
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What is streak?
What is luster? |
Streak-color of mineral when ground into a powder
Luster-the way light reflects from its surface. 2 types: metallic and non-metallic |
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How does breaking a mineral help identify it?
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Cleavage is the tendency of a mineral to break along flat surfaces.
Fracture is the tendency of a mineral to break into irregular pieces. |
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How does the hardness of a mineral help identify it?
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A mineral's hardness is its resistance to being scratched. The Mohs scale is used to describe a mineral's hardness. Based on the fact that a harder mineral will scratch a softer mineral.
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What is a rock?
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Naturally formed solid made of a mixture of minerals
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What does the rock cycle show?
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It shows how rocks form, change, and break down over time.
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What are the 3 major types of rocks and how do each form?
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1. Igneous - forms when molten rock cools
2. Sedimentary - forms when the particle of rock layers are cemented over time 3. Metamorphic - rock particles change due to pressure and temperature |
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What is weathering?
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Physical or chemical breakdown of rocks
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