This printable crossword puzzle on the topic of Plate Tectonics & Volcanoes has 10 clues. Answers range from 4 to 18 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
The Earth's outermost and thinnest layer
The older, thicker part of the crust and made up mostly of granite
The rock of the ocean floor and made mostly of basalt
The Earth's middle and densest layer that makes up most of Earth's mass
Melted rock below Earth's surface
Molten rock that reaches the Earth's surface
The crust and rigid upper part of the mantle
The lithosphere is divided into __________ ___________ which are giant, slow-moving chunks of rock.
The soft layer in the mantle that flows like very thick liquid. The tectonic plates float on this layer.
A slow moving motion of the asthenosphere that causes the lithosphere to be in constant motion.