Section 1-3 Flashcards
Pressure
Force exerted on a surface divided by the area over which the force is exerted
Seismic waves
Vibrations that travel through earth carrying the energy released during an earthquake
Crust
The layer of rock that forms earths outer surface
Basalt
A dark, dense , igneous rock with a fine texture , found in oceanic crust
Granite
A unusually light colored igneous rock that is found in continental crust
Mantel
The layer of hot , solid material between earths crust and core
Lithosphere
A ridge layer made up of the uppermost part of the mantle and the crust
Asthenosphere
The soft layer of the mantel on which the lithosphere floats
Outer core
A layer of molten iron and nickel that surrounds the inner core of earth
Inner core
A dense sphere of solid iron and nickel at the center of earth
Radiation
The transfer of energy through space
Conduction
The transfer of heat within a material or between materials that are touching
Convection
The transfer of heat by movement of a fluid
Density
The amount of mass in a given space; mass per unit volume
Convection current
The movement of a fluid , caused by differences in temperature, that transfers heat from one part of the fluid to another
