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Unit 1b: Earth's Layers and Plate Tectonics

Across
Hottest layer of Earth
Volcano that may erupt
A fracture in rock in which there has been movement causing quakes
Large sea wave produced by underwater quake or volcano
Hot, melted rock that flows outside of Earth
Where two or more plates meet and move
Zone of earthquake and volcano activity along Pacific plate
Large land mass thought to exist millions of years ago
Wave of energy caused by movement within Earth or on its surface
Plates slide past one another
Down
An inactive volcano
Plates separate
Thinnest layer of Earth
Deep depressions in ocean crust
Plates collide
One plate slides under another plate
Thickest layer of Earth
Liquid layer of Earth
Hot, melted rock within Earth