Volcanoes II Crossword Puzzle

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Volcanoes II Crossword Puzzle

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QUESTIONS LIST:

  • lava : this is igneous rock (magma) that has reached earth’s surface.
  • pyroclastics : this refers to any material that is blasted out of a volcano: cinders, ash, gases & rocks.
  • caldera : this is a huge volcanic crater that is formed in one of two ways: violent volcanic explosion or implosion.
  • crater lake : this is an example of a caldera filled with water in oregon.
  • lahars : this is a mudflow that is caused when a volcano’s intense heat rapidly melts ice & snow on the slopes of a volcano.
  • nuees ardentes : since these pyroclastic flows of super-heated deadly gas are denser than air, they hug the ground & destroy everything in their path.
  • extrusive : this describes the type of volcanic activity that forms the following: lava, pyroclastics, calderas, lahars & nuees ardentes.
  • rich soil : this is one benefit of volcanic eruptions.
  • geothermal : volcanic regions can be a source of this type of energy.
  • andes : this mountain range has many volcanoes made of andesite lava.
  • tsunamis : volcanic eruptions in the ocean can cause these to occur.
  • seafloor volcanoes : these volcanoes have the potential to trigger devastating tsunamis.
  • tonga : in the 2000 km stretch of ocean floor between new zealand & this island country 75 new volcanoes were discovered.
  • prisoner : this was the only survivor when mount pelee on the island of martinique erupted and a nuees ardente swept over the city of st. pierre.
  • novarupta : the eruption of this volcano on the alaskan peninsula in 1912 was 10x more powerful than the 1980 mt. st. helens eruption.