This printable crossword puzzle on the topic of Plate Tectonics & Volcanoes has 15 clues. Answers range from 5 to 17 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
The process that continually adds new material to the ocean floor, discovered by Harry Hess
Wegener's theory that the continents slowly move over the Earth's surface.
A layer of rock that forms the outer skin of the Earth (the outermost layer of the Earth)
Deep underwater canyons
A dense ball of solid metal found at the center of the Earth
The longest underwater chain of mountains in the world
The transfer of heat energy by the movement of heated fluid (this type of current moves the tectonic plates)
The soft outermost layer of the mantle (plates slide on top of this layer)
The supercontinent that Alfred Wegener believed existed.
A layer of hot rock (the middle and largest layer of the Earth)
A layer of molten metal that surrounds the inner core
The process in which the ocean floor sinks beneath a deep ocean trench and into the mantle
Plate boundary where plates slide past each other forming fault lines
Plate boundary where plates move apart
Plate boundary where plates come together