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PLATE TECTONICS

Across
___ MOUNTAINS ARE FORMED WHEN TENSION FORCES CAUSE LARGE BLOCKS OF CRUST TO BREAK AND TILT OR SLIDE DOWN THE BROKEN SURFACES OF CRUST
___ DRIFT IS THE THEORY THAT THE CONTINENTS WERE ONCE CONNECTED IN A SINGLE LANDMASS THAT BROKE APART AND MOVED TO THEIR CURRENT POSITIONS
CONE-SHAPED HILL FORMED WHEN HOT MAGMA, SOLIDS, AND GASES ERUPT ON EARTH'S SURFACE
THE PLASTIC-LIKE LAYER ON WHICH THE LITHOSPHERE PLATES FLOAT
THE RIGID LAYER OF EARTH ABOUT 100 KM THICK; MADE OF THE CRUST AND A PART OF THE UPPER MANTLE
___ RIDGE IS FORMED AT A DIVERGENT BOUNDARY; WHERE TWO PLATES SEPARATE, LAVA FILLS THE VOID, CAUSING NEW CRUST TO BE PRODUCED
A BOUNDARY WHERE TWO PLATES SLIDE PAST EACH OTHER
A BOUNDARY WHERE TWO PLATES MOVE TOGETHER
A FRESHWATER SWIMMING REPTILE WHOSE FOSSILS WERE FOUND ON CONTINENTS SEPARATED BY OCEANS
FORMED AT A SUBDUCTION ZONE WHERE AN OCEANIC CRUST IS PUSHED BELOW A CONTINENTAL CRUST
A VALLEY THAT FORMS WHERE TWO PLATES ARE MOVING APART
Down
A FRACTURE THAT OCCURS WHEN PLATES SLIDE OR PULL APART
A FOSSILIZED PLANT THAT GREW IN THE TEMPERATE CLIMATES FOUND ON SEVERAL CONTINENTS
___ CURRENT IS A CURRENT IN EARTH'S MANTLE THAT TRANSFERS HEAT IN EARTH'S INTERIOR AND IS THE DRIVING FORCE FOR PLATE TECHTONICS
___ BOUNDARY IS WHERE TWO PLATES MOVE APART
THE LARGE, ANCIENT LANDMASS THAT WAS COMPOSED OF ALL THE CONTINENTS JOINED TOGETHER
GERMAN SCIENTIST WHO IN 1912 PROPOSED THE THEORY OF CONTINENTAL DRIFT
THE MOVEMENT OF THE GROUND THAT OCCURS WHEN PLATE COLLIDE OR SLIDE PAST EACH OTHER
PLATE ___ IS THE 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
___ CHALLENGER IS THE RESEARCH SHIP THAT GATHERED INFORMATION ABOUT THE ROCKS ON THE SEA FLOOR, ADDING EVIDENCE FOR SEA FLOOR SPREADING