| A | B |
|---|
| Hardened tree sap traps insects | amber |
| large underground source of water | aquifer |
| circular coral reef with lagoon | atoll |
| smallest unit of an element | atom |
| origin of universe theory | big bang |
| high feathery cloud ice-filled | cirrus |
| general weather conditions | climate |
| water vapor changes to liquid | condensation |
| theory explanining continents moving | continental drift |
| line on a map showing elevation | contour |
| center of a planetary body | core |
| `twisting of earth's fluids due to rotation | coriolis |
| bond created by sharing electrons | covalent |
| highest point on a wave | crest |
| a large glacial crack | crevasse |
| thick puffy clouds | cumulus |
| time required for earth's rotation | day |
| mass of a substance over volume | density |
| temperature at which air is saturated with water | dew point |
| ridge separating two watersheds | divide |
| mound of windblown sand | dune |
| sub-atomic particle with negative charge | electron |
| above ground quake center | epicenter |
| largest unit of geologic time | era |
| break in rock | fault |
| distance wind pushes to make a wave | fetch |
| below groud quake center | focus |
| remains of an animal in stoimentary rock | fossil |
| the study of the solid earth | geology |
| force fo attraction between matter | gravity |
| trapping of earth's heat by atomosphere | greenhouse effect |
| flat-topped seamount | guyot |
| precipitation in the form of ice lumps | hail |
| amount of water in the atmosphere | humidity |
| possible explanation of a problem | hypothesis |
| long periods of cool climates with ice sheet | ice age |
| rocks formed by fire | igneous |
| animal without a backbone | invertebrate |
| bond formed by electron transfer | ionic |
| band of high altitude westerly winds | jet stream |
| slowest wave generated by quake | l-wave |
| parallels around earth | latitude |
| magma reaching earth's surface | lava |
| how light reflects off surface | luster |
| liquid rock formed below crust | magma |
| substance that has mass and volume | matter |
| curvy path of a river | meander |
| known as the "age of the retiles" | mesozoic |
| rocks changed by heat and pressure | metamorphic |
| inorganic, crystalline solid | mineral |
| two or more atoms bonded togther | molecule |
| lowest of all tides | neap |
| subatomic particle with no charge | neutron |
| center of the atom | nucleus |
| the study of the earth's oceans | oceanography |
| O3 molecule absorbs UV sun rays | ozone |
| fastest wave generated by a quake | p-wave |
| giant super continent of long ago | pangaea |
| any one of the nine major bodies orbit sun | planets |
| large area of flat-topped rocks above sea level | plateau |
| floating microscopic ocean organisms | plankton |
| movement of planet around the sun | revolution |
| scale with earthquake magnitude | richter |
| return of ocean water through channel | rip current |
| spinning of a planet on it's axis | rotation |
| measure of amount of salt in water | salinity |
| volcanic mountain of ocean floor | seamount |
| vibration traveling through the earth | seismic |
| elevation where snow and ice remain | snowline |
| physical form of matter with definite shape | solid |
| cloud with sheet-like appearance | stratus |
| one of a group of long rolling waves | swell |
| hypothesis supported by experimentation | theory |
| daily change in ocean level | tides |
| deep valley in ocean floor | trench |
| lava built up on surface around a vent | volcano |
| general condition of the atomosphere | weather |
| movement of air molecules | wind |
| hairy elephants of the cenozoic | wooly mammoth |
| change in animals over time | evolution |
