Geological Terms

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Crust

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The outermost layer of the Earth, composed of rock.

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Evidence

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Information or signs indicating whether a belief or proposition is true or valid.

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Inner Core

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The innermost part of the Earth, believed to be solid and composed primarily of iron and nickel.

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Lithosphere

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The rigid outer layer of the Earth, consisting of the crust and upper mantle.

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Mantle

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The part of the Earth's interior between the crust and the core, composed of silicate rocks rich in magnesium and iron.

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Outer Core

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The layer of the Earth between the mantle and inner core, believed to be liquid and composed mainly of iron and nickel.

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Tectonic Plates

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Large, rigid pieces of the Earth's lithosphere that move and interact at their boundaries, causing earthquakes and volcanic activity.

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Seismic Waves

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Vibrations that travel through the Earth, often as a result of earthquakes, and provide information about the Earth's internal structure.

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Subduction Zone

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A region where one tectonic plate moves under another, often causing earthquakes and volcanic activity.

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Continental Drift

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The theory that continents have moved over geological time to their current locations, originally proposed by Alfred Wegener.