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 mantle. 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 ___________________.​