| A | B |
| geologists | scientists who study the processes that create Earth's features |
| constructive forces | forces that build Earth's features |
| destructive forces | forces that wear away earth features |
| continents | great land masses surronded by oceans |
| seismic waves | energy waves that move through the Earth's layers |
| pressure | force exerted over an area |
| basalt | very dense rock found in oceanic plates |
| granite | less dense crystalline rock found in continental plates |
| crust | uppermost layer of the earth |
| mantle | layer composed of the lithosphere and asthenosphere |
| lithosphere | region of the mantle that is rigid and borders the crust and floats on the asthenosphere |
| asthenosphere | soft solid area of the mantle |
| outer core | liquid layer composed of melted iron & nickel |
| inner core | dense, extremely hot, solid iron ball |
| magnetosphere | invisible, magnetic region that surrounds the earth |
| radiation | form of heat transfer by infrared light |
| conduction | heat transfer through direct contact |
| convection | indirect heat transfer through a medium |
| density | mass / volume |
| thermos | device that inhibits heat transfer |