click below
click below
Normal Size Small Size show me how
General Science
Test
| Question | Answer |
|---|---|
| Maritime polar (mp) | air masses form over oceans of arctic regions |
| SUPER CELL | the most powerful type of thunderstorm |
| Freezing Nuclei | microscopic particles which fall below freezing |
| Warm Front | When warm air is advancing flattens colder air beneath it |
| Cold Front | Boundary when mass of cold air mass into territory covered by mass of warmer air |
| SUPER BOLT | most powerful type of lightning |
| Stationary Front | when two air masses meet and become stationary, neither displacing the other/ stalemate |
| Continental tropical (ct) | air mass form over desert or tropical land area |
| Thermal Energy | Heat which comes from the sun |
| Front | Boundary between two air masses |
| Condensation | Gas molecule which can return to liquid state |
| Frontal Lows | Whirlpool of low pressure that may form along stationary front |
| TRIESTE | 1st to explore Challenger Deep |
| Sublimation | Process when molecule changes into ice crystal |
| GUYOTS | unusual flat-topped seamounts that are found alongside conventional seamounts |
| Shelf Break | fairly sharp drop-off |
| oceanic deep | Any area of sea exceeds 6000 meters in depth |
| Trenches | Huge, muddy valleys that cut through portions of the abyssal plains |
| Seamounts | Underwater volcanic mountains that rise more than 900 m |
| SCUBA | (self-contained underwater breathing apparatus)device that allows oceanographers to breathe underwater |
| Submersibles | small research submarine which allows oceanographers to visit regions of sea too deep for scuba |
| Oceanographic Buoy | Unmanned floating observation station that automatically takes and transmits data to oceanographers |
| Oceanographic research ship | ship equipped to provide a mobile research laboratory and working platform for oceanographers |
| Submarine canyons | Large underwater canyon that cuts through continental shelf or continental slope |
| Continental Shelf | Sandy, gently, sloping underwater plain bordering the coast of a continent |
| Continental Rise | The gently sloping region at the base of continental slopes that stretches away 400's of miles toward abyssal plain |
| Continental Slope | Region at edge of continental shelf where the ocean floor slopes fairly steeply downward away from the continent |
| Ocean Currents | Large streams of ocean water that flows as unit at or below surface created by winds or differences in density |
| Thermocline | boundary is where cold, deep water meets sun-warmed water |
| Salinity | Measure of quantity of dissolved solids in a mixture such as seawater |
| Meteorologists | Scientists who study weather |
| Super Computers | Powerful computers capable of rapidly performing complex calculations |
| Cirrostratus | Thin,translucent clouds spread like sheet, are found in upper atmosphere |
| Weather Forecasts | Predictions what the weather would be like in the future |
| Dew Point | Temperature which water vapor condenses and varies on pressure and humidity of air |
| Evaporation | Process which molecule of liquid becomes gas |
| CLIMATE | Year-round weather typical of certain place |
| Water Vapor | Water in form of gas |
| Precipitation | Water or ice falling to earth |
| Sleet | Ice pellets form raindrops fall cold air |
| Hail | Destructive form of precipitation layered balls of ice |
| Updraft | Current of rising air |
| Cell | Updraft System |
| Dew Point | Temperature which water vapor in air begins to condense, and it varies depending on the pressure and humidity of air |
| Air-mass Weather | Same weather conditions prevail form day to next |
| Arctic | Air mass which bring cold weather to south and are colder and drier than continental |
| Maritime Tropical (mT) | Air masses form over oceans of tropics accompanied by thunderstorms |
| Photochemical Smog | Brown haze results from molecules released by cars,buses,factories,etc. |
| Air Mass | Body of air with temperature,humidity, and pressure |
| Smog | Combination of smoke and fog |
| Precipitation Fog | Warm rain falling into cool air |
| Upslope Fog | Formed by Moist winds blowing gentle slope |
| Advection Fog | Forms over ocean water commonly called sea fog |
| Dew | Water vapor condenses below dew point |
| Condensation Nuclei | Microscopic particles which are the center(nucleus) of water drops |
| Three Factors Causing Weather | 1.Thermal energy 2.Heat distribution 3.Water vapor |
| RADIATION FOG | Occurs on clear nights "autumn" |
| Fog | Stratus cloud formed at surface of earth |
| Cirro cumulus | Puffs of cotton in upper troposphere |
| Stratocumulus | Heavy layer of gray clouds "Puffy" |
| Lenticular clouds | Form over mountains in pocket of low pressure-where air was forced over mountain begins to descend |
| weather | State of atmosphere at time and place |
| Cirrus | Clouds float near top of atmosphere |
| Stratus | Heavy clouds close to ground, water vapor forms horizontally |
| Heat of Condensation | Heat released when gas becomes liquid |
| Frost point | temperature where frost forms |
| Nimbostratus | Stratus rain clouds |
| Cumulus | Clouds resemble piles of cotton |
| Nimbus | Clouds produces precipitation |
| Uneven Distribution of Heat | 1.Earth's 23.5% tilt of hemisphere 2.Half of earth always in shadow 3.During day land heats faster than water and cools faster at night |
| Barometer | Measures air pressure |
| hydrometer | measures relative humidity |
| Relative Humidity | Percentage of amount of moisture in air compared to maximum amount hold under same conditions |
| anemometer | measures wind speed |
| Wind Vane | measures direction of wind |
| Oceanography | Study of the seas and oceans |
| Hydrostatic Pressure | Water pressure |
| Heat of Vaporization | Energy gained by molecules and can be measured by calories per gram(540 calories per gram) |
| Storm Surge | Combination of low-pressure bulge, wind- pushed water levels, and waves produce elevated water levels |
| Isotherms | Line on weather map connecting places of equal temperature |
| RADAR | (Radio detection and ranging) uses radio waves to detect objects and measure distance |
| Sounding Rockets | Small,inexpensive rockets launch small payloads to altitude of few dozen miles |
| Station Model | Conditions at each weather are presented in grouping of numbers and symbols |
| Radiosonds | Instruments measure and transmit meteorological data form balloons to weather stations below |
| Rain Bands | Lines of thunderstorms at lower altitudes range form 50 to 300 miles long |
| Eye Wall | Cylinder of thick whirling clouds and rain surround eye of hurricane |
| EYE | center of hurricane region of low pressure few miles wide, which storm rotates(counterclockwise=N hemisphere, clockwise=S hemisphere |
| Steps of Hurricane | 1.Tropical disturbance 2.Tropical depression 3.Tropical storm 4.Hurricane |
| Return Stroke | Brilliant stream of electricity after the stepped leader and positive stream meet a few hundred feet above the ground |
| Stepped Leader | Stream of electrons going down to the ground |
| Squall Lines | Thunderstorms occur in small groups or in long lines |
| DOWN BURSTS | Blasts of cool wind blow downward |
| THUNDER | Shock wave air lightning expands |
| Single-cell Thunderstorm | One cell or updraft system |
| Rain Gauge | Open cylindrical glass jar with ruler on side |
| Lightning | Discharge of static electricity |
| Meteorology | The study of weather and atmospheric conditions |
| Frost point | Temperature where frost forms |
| Occluded fronts | Type of front occurs when cold air mass slides under warm air mass and lifts it off ground |
| Challenger Deep | Deepest known point of sea 10,911= nearly 7 miles |
| Tornado | Narrow funnel of powerful,rapidly, whirling winds |
| Rosette | Cluster of insulated bottles that are opened and closed at predetermined depths as the device is lowered into the water |
| Piston Corer | device used to bring back narrow columns or cores of floor sediments as much as 25 meters(80)ft long |
| abyssal plain | broad,flat plains of the deep,ocean floor |
| Oceanic ridges | series of undersea mountain ranges that encircles the earth |
| Mid-Atlantic Ridge | oceanic ridge that extends down the middle of the Atlantic oceans |
| ocean basins | The deep depressions in earth's surface that contain the oceans |
| Neap tides | Weaker-than-normal tides |
| Spring tides | tide that is higher than normal at high tide and is lower than normal at low tide, occurs at new moon and full moon |
| Tides | most regular and predictable movements of water in oceans |
| Tsunamis | gigantic waves formed by underwater earthquake, underwater volcano, or an undersea landslide |
| Rip Currents | dangerous surface currents which carry large volumes of water back to the sea through channels between incoming breakers |
| longshore current | current of water,produced by waves, that flows parallel to a beach |
| Undertow | current which may wash sand from beneath feet of swimmers |
| Waves | Rhythmic back-and-forth motions of water that transfer energy through the water |
| Ocean swells | Gently,rolling waves that may appear even during calm weather |
| Breaker | Wave in process of toppling over as it nears shore |
| Surf | Pounding mass of foaming water produced when a wave breaks |
| Counter current | ocean current that flows in opposite direction of a surface current, either beside it or beneath it |
| Upwelling | mass of cool, deep water that comes to the surface as result of prevailing land breeze blows surface water away from a coast |
| Turbidity Current | Type of density current formed when seawater mixes with silt or mud and flows down undersea slopes |
| Density Current | Subsurface current caused by density differences |
| Peru Current | Cold current flows northward along western(Pacific)coast of South America |
| Gulf Stream | Large,warm surface current that flows northeast across the Atlantic |
| Icebergs | Huge chunks of ice broken off from glaciers |
| Ice shelf | outer edge of a glacier floating over the surface of the ocean |
| Glacier | Thick sheet of ice on land that flows under its own weight |
| Sea ice | Ice that forms when seawater freezes |
| Sodium Chloride | Ordinary table salt |
| Isobars | Curved lines of equal pressure |
| Weather satellite | automated package of instruments and sensors that orbits the earth, records, and analyzes weather conditions below and transmits data to meteorologists |
| Knot | nautical mile per hour;equal to 11/7 mph |
| Hurricanes | giant ,whirling storms accompanied by destructive winds of 74 to 100 mph torrential rains and high waves and tides |
| Dust devil | Relatively, harmless cousin of tornado, can pick up a small child or dog and can knock over a adult, but not very strong |
| Waterspout | type of tornado forms over water |
| Development of thunderstorm | 1.updraft stage 2.cumulus stage 3.mature stage 4.dissipating stage |
| snowflakes | clump of ice crystals that falls as snow |
| Freezing rain | Dangerous type of precipitation that freezes when it hits the ground |
| Drizzle | mist |
| Water Cycle | movement of water from sea into air and back again into the sea |
| Continental Tropical(CT) | dry air mass forms over cold land areas such as Northern Canada or Alaska, bringing cold,dry weather |
| Cumulonimbus | Thunderclouds |