Terms : Hide Images
| 5199288974 | Climate | the average weather that occurs in a given region over a long period of time | 0 | |
| 5199294835 | Weather | the short-term conditions of the atmosphere in a local area, which include temperature, humidity, clouds, precipitation, and wind speed | 1 | |
| 5199297905 | Troposphere | a layer of the atmosphere closest to the surface of Earth, extending up to approximately 16 km (10 miles) | 2 | |
| 5199303284 | Stratosphere | the layer of the atmosphere above the troposphere, extending roughly 16 to 50 km (10-31 miles) above the surface of Earth | 3 | |
| 5199309648 | Albedo | the percentage of incoming sunlight reflected from a surface | 4 | |
| 5263612731 | Saturation point | the maximum amount of water vapor in the air at a given temperature | 5 | |
| 5263613719 | Adiabatic cooling | the cooling effect of reduced pressure on air as it rises higher in the atmosphere and expands | 6 | |
| 5263616374 | Adiabatic heating | the heating effect of increased pressure on air as it sinks toward the surface of Earth and decreases in volume | 7 | |
| 5263620064 | Latent heat release | the release of energy when water vapor in the atmosphere condenses into liquid water | 8 | |
| 5263622610 | Atmospheric convection currents | global patterns of air movement that are initiated by the unequal heating of Earth | 9 | |
| 5263623644 | Hadley cell | a convection current in the atmosphere that cycle between the equator and 30 degrees N and 30 degrees S | 10 | |
| 5263628688 | Intertropical convergence zone (ITCZ) | the latitude that receives the most intense sunlight, which causes the ascending branches of the two Hadley cells to converge | 11 | |
| 5263630677 | Polar cell | a convection current in the atmosphere, formed by air that rises at 60 degrees N and 60 degrees S and sinks at the poles, 90 degrees N and 90 degrees S | 12 | |
| 5263632886 | Ferrel cell | a convection current in the atmosphere that lies between Hadley cells and polar cells | 13 | |
| 5263634872 | Coriolis effect | the deflection of an object's path due to the rotation of Earth | 14 | |
| 5263636229 | Rain shadow | a region with dry conditions found on the leeward side of a mountain range as a result of humid winds from the ocean causing precipitation on the windward side | 15 | |
| 5285837162 | Gyre | a large-scale pattern of water circulation that moves clockwise in the Northern Hemisphere and counterclockwise in the Southern Hemisphere | 16 | |
| 5285840213 | Upwelling | the upward movement of ocean water toward the surface as a result of diverging currents | 17 | |
| 5285843019 | Thermohaline circulation | an oceanic circulation pattern that drives the mixing of surface water and deep water | 18 | |
| 5285845676 | El Nino/Southern Oscillation | a reversal of wind and water currents in the South Pacific | 19 | |
| 5311049052 | Terrestrial biome | a geographic region categorized by a particular combination of average annual temperature, annual precipitation, and distinctive plant growth forms on land | 20 | |
| 5311052761 | Aquatic biome | an aquatic region characterized by a particular combination of salinity, depth, and water flow | 21 | |
| 5311055395 | Tundra | a cold and treeless biome with low-growing vegetation |  | 22 |
| 5311057661 | Permafrost | an impermeable, permanently frozen layer of soil | 23 | |
| 5311059948 | Boreal forest | a forest biome made up primarily of coniferous evergreen trees that can tolerate cold winters and short growing seasons |  | 24 |
| 5311064699 | Temperate rainforest | a coastal biome typified by moderate temperatures and high precipitation |  | 25 |
| 5311066700 | Temperate seasonal forest | a biome with warm summers and cold winters with over 1 m (39 inches) of precipitation annually |  | 26 |
| 5311070491 | Woodland/shrubland | a biome characterized by hot, dry summers and mild, rainy winters |  | 27 |
| 5311075913 | Temperate grassland/cold desert | a biome characterized by cold, harsh winters, and hot, dry summers |  | 28 |
| 5311078449 | Tropical rainforest | a warm and wet biome found between 20 degrees N and 20 degrees S of the equator, with little seasonal temperature variation and high precipitation |  | 29 |
| 5311083706 | Tropical seasonal forest/savanna | a biome marked by warm temperatures and distinct wet and dry seasons |  | 30 |
| 5311088526 | Subtropical desert | a biome prevailing at approximately 30 degrees N and 30 degrees S, with hot temperatures, extremely dry conditions, and sparse vegetation |  | 31 |
| 5363396019 | Littoral zone | the shallow zone of soil and water in lakes and ponds where most algae and emergent plants grow | 32 | |
| 5363396857 | Limnetic zone | a zone of open water in lakes and ponds | 33 | |
| 5363398235 | Phytoplankton | floating algae | 34 | |
| 5363398270 | Profundal zone | a region of water where sunlight does not reach, below the limnetic zone in very deep lakes | 35 | |
| 5363400124 | Benthic zone | the muddy bottom of a lake, pond, or ocean | 36 | |
| 5364865474 | Oligotrophic | describes a lake with a low level of productivity | 37 | |
| 5363400850 | Mesotrophic | describes a lake with a moderate level of productivity | 38 | |
| 5363401780 | Eutrophic | describes a lake with a high level of productivity | 39 | |
| 5363402623 | Freshwater wetlands | An aquatic biome that is submerged or saturated by water for at least part of each year, but shallow enough to support emergent vegetation | 40 | |
| 5363404680 | Salt marsh | a marsh containing nonwoody emergent vegetation, found along the coast in temperate climates | 41 | |
| 5363406465 | Mangrove swamp | a swamp that occurs along tropical and subtropical coasts, and contains salt-tolerant trees with roots submerged in water | 42 | |
| 5363408244 | Intertidal zone | the narrow band of coastline between the levels of high tide and low tide | 43 | |
| 5363409041 | Coral reef | the most diverse marine biome on Earth, found in warm, shallow waters beyond the shoreline | 44 | |
| 5363410058 | Coral bleaching | a phenomenon in which algae inside corals die, causing the corals to turn white | 45 | |
| 5363411276 | Open ocean | deep ocean water, located away from the shoreline where sunlight can no longer reach the ocean bottom | 46 | |
| 5363412450 | Photic zone | the upper layer of ocean water in the ocean that receives enough sunlight for photosynthesis | 47 | |
| 5363413784 | Aphotic zone | the deeper layer of ocean water that lacks sufficient sunlight for photosynthesis | 48 | |
| 5363414866 | Chemosynthesis | a process used by some bacteria in the ocean to generate energy with methane and hydrogen sulfide | 49 |
