PLATE TECTONIC CROSSWORD PUZZLE

the transfer of heat energy that results from magma becoming heated, less dense, and rising eventually cooling at the surface, becomes more dense and sinks
the upper layer of the earths mantle, below the lithosphere, in which there is relatively low resistance to plastic flow and convection is thought to occur
the rigid outer layer of the earth, consisting of the crust and upper mantle
the distance from the surface of the ocean to the ocean floor
the divisions of earths outer shell that glide over the mantle
the process by which new oceanic crust forms along mid ocean ridges and the older crust moves away from the ridge
a long narrow mountain chain found on the floor of the ocean
a tectonic boundary where two plates are moving away from each other and new crust is forming from rising magma
an event that causes the magnetic field on earth to reverse its direction
the theory that continents have moved slowly to their current locations and continue to move.