Plate Tectonics Cross Word Puzzle
This printable crossword puzzle on the topic of Plate Tectonics & Volcanoes has 21 clues. Answers range from 5 to 14 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
Description
Slowest earthquake wave. Complex motion, slowest velocity of all waves
Compressional motion earthquake wave. Greatest velocity earthquake wave
Shake motion earthquake wave. Slower velocity wave
The place within earth where earthquake waves originate
Point on surface, directly above the focus
Concept introduced by Charles Richter, based on amplitude of largest seismic wave
Measurement of the degree of earthquake shaking based on the amount of damage at a given locale
Thin, rocky outer layer. Varies in thickness
Basaltic composition, younger than continental crust
Below crust to a depth of 2900 kilometers
Crust and uppermost mantle. Cool, rigid, and solid
Beneath Lithosphere, to a depth of 660 kilometers. Soft, weak layer
Very hot gradually flowing layer. 660-2900 kilometers
Liquid layer, generates earth's magnetic field. Iron-Nickel alloy below mantle
Sphere with radius of 1216 km. Behaves like a solid
Published The Origin of Continents and Oceans. First proposed his hypothesis in 1915
Supercontinent broke apart about 200 million years ago
Walnut size pyroclastic material
"pea-sized" pyroclastic material
rough, jagged block lava
broad, slightly domed volcano
