Volcanoes II Crossword Puzzle
Download and print this Volcanoes II crossword puzzle. Use a pencil or pen to complete the puzzle by filling in the blanks. The completed answers are included, so you can easily check your progress.
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.





