Directions. Use the word bank to fill in the gaps in the passage below. Write your answers on a separate sheet of paper. . Convection Convection current Crust Earth's plates Earthquakes Plate tectonics Plates Volcanoes The surface layer of the earth is called the This layer is broken up into pieces called These "float" on the mantie. Heat rising and falling inside the mantle creates current called The current move the This movement is known as The movement of the earth's plate causes earthquakes and 12​