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Volcanoes Crossword Puzzle

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6 What is a volcano that is built by alternating explosive and quiet eruptions that produce layers of tephra and lava?
7 What is a dark, grey volcanic rock?
8 What is a broad, gently sloping volcano formed by quiet eruptions of basaltic lava?
10 What is the largest intrusive igneous rock body that forms when magma is being forced upward toward Earth's crust?
11 What is an igneous rock feature formed when magma is squeezed into a vertical crack that cuts across rock layers and hardens underground?
13 What is the solid igneous core of a volcano left behind after the softer core has been eroded?
14 What is a large, circular-shaped opening formed when the top of a volcano collapses?
16 What is a large underground pool of molten rock found beneath the surface of the Earth?
18 What is basaltic lava forming smooth undulating or ropy masses?
1 What is an opening where magma is forced up and flows out onto Earth's surface as lava, forming a volcano?
2 What is molten rock that flows from volcanoes onto Earth's surface?
3 What is an opening in Earth's surface that erupts sulfurous gases, ash, and lava?
4 What is a steep-walled depression around a volcano's neck?
5 What is the result of an unusually hot area at the boundary between Earth's mantle and core that forms volcanoes when melted rock is forced upward and breaks through the crust?
6 What is steep-sided, loosely packed volcano formed when tephra falls to the groumd?
9 What is basaltic lava forming very rough jagged masses with a light frothy texture?
12 What is an igneous rock feature formed when magma is squeezed into a horizontal crack between layers of rock and hardens underground?
15 What are bits of rock or solidified lava dropped from the air during an explosive volcanic eruption?
17 What is hot, melted rock material beneath Earth's surface?
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