This printable crossword puzzle on the topic of Plate Tectonics & Volcanoes has 15 clues. Answers range from 5 to 20 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
a dead remain
a giant land mass
why is the atlantic ocean shrinking
these were mapped using the waves of sonar
a long narrow and very deep canyon where the ocean floor bends down to the mantle
plates moving apart
when the ocean floor sinks beneath a deep-ocean trench and back into the mantle
this mapped mid-ocean ridges
tectonic______
the theory of how convection currents moved these_____________
an extended break in a body of rock
where plates come apart
where two plates collide
where two plates slip past each other
a large elongated depression with steep walls formed by the downward displacement of a block of the earth's surface between nearly parallel faults or fault systems