Volcanoes Crossword Puzzle Printable and Free – 7th Grade
Crossword Puzzle covers the following terms:
dormant volcano – A volcano that has not erupted for a long time but may erupt again one day.
active volcano – A volcano that is erupting or has shown signs that it may erupt in the near future.
vent – The opening through which molten rock and gas leave a volcano.
crater – A bowl-shaped opening at the top of a volcano.
rifts – Deep long cracks where earth’s plates separate.
hot spots – Areas of volcanic activities that result from plumes of hot solid material that have risen from deep inside earth’s mantle.
shield volcano – Broad volcano with gently sloping sides built by nonexplosive eruptions of basaltic lava that accumulates in layers.
cinder cone volcano – A steep, cone-shaped hill or small mountain made of volcanic ash, cinders, and bombs piled up around a volcano’s opening.
composite volcano – Volcano built by alternating explosive and quiet eruptions that produce layers of tephra and lava; found mostly where Earth’s plates come together and one plate sinks below the other.
batholith – Largest intrusive igneous rock body that forms when magma being forced upward toward Earth’s crust cools slowly and solidifies underground.
volcanic neck – Solid igneous core of a volcano left behind after the softer cone has been eroded.
caldera – The large hole at the top of a volcano formed when the roof of a volcano’s magma chamber collapses.
silica – A material found in magma that is formed from the element’s oxygen and silicon; it is the primary substance of Earth’s crust and mantle.
Ring of Fire – A major belt of volcanoes that rims the Pacific Ocean.
island arc – A string of islands formed by the volcanoes along a deep-ocean trench.
hot spring – A pool formed by groundwater that has risen to the surface after being heated by a nearby body of magma.
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