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Tectonic Crossword Puzzle By: Helen

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Across
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Breaks in the earth's crust that have slipped past each other to form boundarys
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A fold in rock that forms a valley
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The force that squeezes rock until it folds or breaks
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The lithosphere is broken up into sections called_________
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A force that stretches rock so it becomes thinner in the middle
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A well tested concept that explains a wide range of observations
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A molten mixture of rock forming substances, gasses, and water from within the mantle
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The block that lies below in a fault
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A major volcanic belt that rims the Pacific ocean
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A fold in a rock that forms an arch
Down
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A theory that states that pieces of earth's lithosphere are in slow, constant movement
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The block of land in a fault that lies above
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A string of islands that forms when magma rises near a subduction zone
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An area where material from within the mantle rises and melts, forming magma
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A weak spot in the earth's crust where magma comes to the surfice
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Stress that pushes two masses of rock in opposite directions
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A deep valley that appears along a divergent boundary
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A force that acts on rock to change its shape or volume
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A device that bounces sound waves off underwater objects
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The process by which ocean crust sinks beneath a deep ocean trench and into the mantle