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Chapter 6 Review-Earth Science

Across
Place where old oceanic crust is forced back down into an ocean trench
Single, giant landmass, or continent, that later broke apart
Theory that Earth's crust is broken into plates that float on the upper part of the mantle
Flat area between two ridges that is formed by spreading plates
Movement of gas or liquid caused by changes in temperature
Large, solid piece of Earth's surface
Down
Process that forms new sea floor
Ocean-floor feature resembling a mountain ridge on land
Theory that the continents were at one or more times a single landmass that broke apart and moved to where they are today
Place where two plates meet
Place where magma reaches the surface of a tectonic plate
Underground pocket of molten rock
Deep canyon