Volcano Terminology

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Active volcano

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A volcano that is erupting or that is likely to erupt in the future.

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Basalt

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A type of rock formed when thin, fast-moving lava cools and is usually very dark in color.

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Erupt

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When lava quickly comes out of a volcano.

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Extinct volcano

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A volcano that is not likely to erupt in the future.

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Lava

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Liquid rock that flows or explodes from a volcano.

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Map

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A drawing of a place that shows where things are.

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Pattern

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Something that happens again and again and again in a way that can be predicted.

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Predict

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To guess what will happen based on things you know.

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Ring of Fire

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A group of active volcanoes that forms a circle shape around the Pacific Ocean.

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Volcano

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A high area of land with an opening where lava flows or explodes out from.