This printable crossword puzzle on the topic of Plate Tectonics & Volcanoes has 15 clues. Answers range from 4 to 11 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
volcanic material that is arborne
measure of the resistance to the flow of a liquid
large depression formed from a collapsed volcano
moving mixture of rock, water & debris that falls down the slopes of a volcano
volcanic activity in which lava, tephra or gases are released
area around the Pacific Ocean that is high in volcanic activity
an opening
motlen material under the Earth's crust
hash, abrasive, made of small rock, minerals and glass fragments
opening at the top of a volcano that is shaped like a bowl
top most part
not active now but may erupt in the future
vent in Earth's crust through which melted rock flows
an area in the Earth's lithosphere through which magma rises
molten rock that flows out of a volcano