Earth Science Crossword
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
 
 
Down: 1) interactions of plates that results in geological features such as mountain building, volcanos, rift valleys and/or cause of earthquakes.3) current in Earth's mantle that transfers heat in Earth's interior and is the driving force for plate tectonics.4) plastic like layer of the Earth on which the lithospheric plates float and move around.6) rigid layer of Earth, made of the crust and part of the upper mantle. Across: 2) hot, melted rock material beneath Earth's surface.5) Wegener's hypothesis that all continents were once connected in a single large landmass that broke apart about 200 million years age and drifted slowly to thier current positions. 7) large, ancient landmass that was composed of all the continents joined together.8) theory that Earth's crust and upper mantle are broken into plates that float and move around on a plastic like layer of the mantle. 9) a large section of Earth's oceanic or continental crust and rigid upper mantle that moves around on the asthenosphere.10) theory that new seafloor is formed when magma is forced upward toward the surface at a mid-ocean ridge.
 

 

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