This printable crossword puzzle on the topic of Plate Tectonics & Volcanoes has 11 clues. Answers range from 5 to 14 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
Below the core
Part of the earth's mantle
Below the surface
Earth's innermost part
The thickest
Layer of the ionosphere
Thin part of the earth's crust
Below the lithosphere
Part of earth
Mostly iron & nickel
The thinnest