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24 Cards in this Set
- Front
- Back
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The dense center of earth; a ball made mostly of two metals, iron and nickle
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core
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Changing the design of packaging or products in order to use fewer resources
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redesign
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The protection of an area
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preservation
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Continent-sized slab of Earth's crust and upper mantle
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Plate
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Earth's outer layer;includes the rock of the ocean floor and large areas of land
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crust
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A vibration, or shaking, of Earths crust
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earthquake
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The thickest layer of Earth;found just below the crust
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mantle
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A break in Earth's crust along which rocks move
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fault
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The point underground where the movement of an earthquake first took place
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focus
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Melted rock inside the Earth
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magma
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Melted rock that reaches Earth's surface
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lava
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The point on the surface of Earth that is right above the focus of an earthquake
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epicenter
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An instrument that records earthquake waves
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seismograph
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In a volcano, the rocket tube through which magma rises toward the surface
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vent
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A mountain that forms when red-hot melted rock flows through a crack onto Earth's surface
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volcano
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An underground pool that holds magma, below a volcano
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magma chamber
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A large basin fromed at the top of a volcano when the top falls in on itself
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crater
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A fossil formed when sediments or minerals fill a mold; it takes on the same outside shape as the living thing that shaped the mold
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cast
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A preserved clue to life on Earth long ago
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fossil
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Fuel formed from the remains of once-living organisms
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fossil fuel
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A fossil that shows changes that long-dead animals in their surroundings
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trace fossil
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Thw world's most widely used fossil fuel
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petroleum
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A fossil imprint made by the outside of a dead plant or animal
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mold
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A gas, methane, usually found with petroleum
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natural gas
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