| A | B |
|---|
| seismic waves | waves produced from an earthquake that travel through the Earth |
| pressure | the force pushing on a surface or area |
| mantle | layer of earth between the crust and the core |
| lithosphere | upper part of the mantle and the crust (solid layer) |
| asthenosphere | soft outer part of the mantle that the lithosphere floats upon |
| outer core | molten metal that surrounds the inner core |
| inner core | solid, dense ball of metal |
| heat transfer | movement of energy from a warmer object to a cooler object |
| radiation | transfer of energy through empty space |
| conduction | heat transfer by direct contact |
| convection | heat transfer by the movement of heated fluid |
| density | measure of mass in a volume of a substance |
| convection current | flow that transfers heat within a liquid |
| pangaea | super continent named by Wegener |
| continental drift | continents move slowly across the Earth's surface |
