This printable crossword puzzle on the topic of Plate Tectonics & Volcanoes has 20 clues. Answers range from 5 to 18 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
The soft layer of the mantle on which the lithosphere floats
A dark, dense, igneous rock with a fine texture, found in oceanic crust.
The direct transfer of heat from one substance to another substance that it is touching.
The hypothesis that the continents slowly move across Earth's surface.
The transfer of heat by the movement of a fluid.
The layer of rock that forms Earth's outer surface.
Vibrations that travel through Earth carrying the energy released during an earthquake.
The result of a force distributed over an area.
A usually light colored igneous rock that is found in continental crust.
The layer of hot, solid material between Earth's crust and core.
The solid, outer layer of the earth that consists of the crust and the rigid upper part of the mantle.
A layer of molten iron and nickel that surrounds the inner core of Earth.
A dense sphere of solid iron and nickel at the center of Earth.
The transfer of energy through space.
The amount of matter in a given space; mass per unit volume.
Circular currents in the mantle caused by the magma being heated by the core off the Earth.
Large super continent that existed 250 million years ago.
The trace or remains of an organism that lived long ago, most commonly preserved in sedimentary rock.
An underwater mountain chain where new ocean floor is formed.
A measuring instrument that sends out an acoustic pulse in water and measures distances in terms of the time for the echo of the pulse to return.