THE IDEA THAT THE EARTH IS SPLIT INTO PLATES

THE RISING OF WARM MATERIAL AND SINKING OF COLD MATERIAL

THE FORCE OF COLD DENSE MATERIALS SINKING DRIVING PLATE TECTONICS

THE HORIZONTAL SPREADING OF THE NEAR SURFACE DRIVING PLATE TECTONICS

BOUNDARIES WHERE THE PLATES PULL APART AND CREAT NEW CRUST

A VALLEY THAT HAS DEVELOPED ALONG A RIFT

A RIDGE ON THE OCEAN FLOOR

TWO PLATES MOVING OPPOSITE DIRECTIONS CRASHING INTO THE OTHER

THIS CREATES A VOLCANIC ARC

THIS CAN CREATE DIVERGENT OR CONVERGENT BOUNDARIES

THE COLLISION OF TWO CONTINENTS CREATES A MOUNTAIN RANGE

THE SINKING OF OCEANIC CRUST UNDER CONTINENTAL CRUST

THIS HAPPENS WHEN SUBDUCTION OCCURS

TO CONTINENTAL CRUSTS SLIDING PAST EACH OTHER

THE CRUST END UP PAST EACH OTHER AFTER SLIDING PAST EACH OTHER