Mt. St. Helens Crossword
                          
                          
                          
                          
                          
                          
                          
                          
                          
                          
                          
                          
                          
                          
                          
                          
                          
                          
                          
                          
                          
 
 
Down: 1) a tectonic plate covering most of North America, Greenland, Cuba, Bahamas, and parts of Siberia and Iceland.2) are a circular current caused by the difference in temperatures from the bottom to the top of the mantle. It causes Earth's plates to shift.3) Hot molten or semifluid rock erupted from a volcano or fissure, or solid rock resulting from cooling of this5) molten rock in the earth's crust6) 1.A cone formed around a volcanic vent by fragments of lava thrown out during eruptions8) temporarily inactive10) the outer most layer of the earth Across: 4) tectonic plate arising from the Juan de Fuca Ridge, and subducting under the northerly portion of the western side of the North American Plate at the Cascadia subduction zone.5) layer between the outer core and crust that extends to a depth of approximately 1,800 miles, and is made of a thick solid rocky substance that represents about 85% of the total weight and mass of the Earth7) A convergent plate boundary where one plate subducts beneath the other, usually because it is denser.9) a belt of volcanoes & frequent seismic activity nearly encircling the Pacific.10) A plate boundary where two plates are moving towards each other.
 

 

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