| A | B |
|---|
| asthenosphere | the zone of mantle beneath the lithosphere that consists of slowly flowing rock |
| conduction | type of energy transfer in which vibrating molcules pass heat along to other vibrating molecules through direct contact |
| continental drift | the hypothesis stating the continents once formed a single landmass, broke up, and drifted to their current positions |
| convection | type of energy transfer in which heat is transferred throughout a fluid through molecular motion |
| energy | the ability to do work or cause change |
| fission | a nuclear reaction in which a massive nucleus splits into smaller nuclei with a simultaneous release of energy |
| fusion | a nuclear reaction in which nuclei combine to form more massive nuclei with the simultaneous release of energy |
| greenhouse effect | the process by which the atmosphere traps infrared rays over the earth's surface |
| lithosphere | the thin outer shell of the earth consisting of the crust and rigid upper mantle |
| plate tectonics | the theory that the lithosphere is made up of plates that float on the asthenosphere and that the plates are probably moved by convection currents |
| radiation | type of energy transfer in the form of waves or rays |
