8th Grade – TheWorksheets.CoM

8th Grade Science Packet - SharpSchool

Earth Science Background Information Article #1 For billions of years, Earth has been remodeling itself. Huge masses of molten rock rise from deep inside Earth, cool into a solid, travel along our planet’s surface and then sink back down. The process is known as plate tectonics. The term tectonics comes from a Greek word meaning ‘to build ...