Chapter 4 Vocab Crossword
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
 
 
Down: 1) one plate moves over one and one sinks2) Two plates move together3) german meteorologist that thoughtthat the fit of the earth wasn't just a coincidence4) theory that new seafloor is formed when magma is forced upward toward the surface at mid-ocean ridge5) whenever earths magnetic field reverse, newly forming iron minerals will record it6) two plates slide past each other8) theory that all continents were once connected in one big landmass that broke apart and slowly drifted to their current position.10) in the atlantic, the pacific, and in other oceans around the world, a system of ridges12) plasticlike layer of earth on which the lithosphere plates float and move around on Across: 7) rigid layer of earth about 100km thick made of the crust and a part of the upper mantle9) large, ancient landmass that was composed of all the continents joined together11) a theory in geology: the lithosphere of the earth is divided into a small number of plates which float on and travel independently over the mantle and much of the earth's seismic activity occurs at the boundaries of these plates large section of earths ocean13) currents in earths mantle that transfer heat in earths interior and is driving force for plate tectonics14) where two plates interact15) large section of earths oceananic or continental and rigid upper mantle that moves around on the asthenosphere
 

 

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