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Definition
| A figure that compares average temperature against annual precipitation and shows the relationships between the various land biomes |
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| Near the North Pole; cold temps; long, dark winters; no trees, permafrost or permanently frozen soil |
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| Also called coniferous forest or tiaga; south of tundra - through northern N. America, Europe and Asia; dominated by pine trees, forest |
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| Temperate deciduous forest |
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Definition
| Seasons: warm summers, cold winters, evenly distributed rainfall; trees shed their leaves in autumn |
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| Temperate woodland and shrubland |
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| Also called chaparral; less rainfall usually with a rainy season; warm summers; plants adapted to retain or store water; S. Calif. & the Mediterranean |
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| Distinct season but with less rainfall; dry conditions; fire and grazing animals promote growth of grasses |
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| Very little rainfall; can be hot but can also be cold; organisms are adapted to survive with less water |
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| Warm with some rainfall, grasses and scattered trees; common in Africa |
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| Warm, with much rainfall but it is seasonal; Common in Africa, Asia, Australia, S. America |
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| Very warm with abundant rainfall; humid; most diverse biome; supports many different plant and animal species |
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| High Mountain Ice and Polar Regions |
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Definition
| Cold all year long, with abundant snow and ice |
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Term
| How are mountains unique in terms of biomes? |
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Definition
| As your elevation increases, the ecosystems change due to lower temperatures in the same way that biomes change as you travel from the equator to the poles |
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Term
| How much of the Earth's water is fresh? |
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Definition
| Fresh water is only 2.5% of all water; so 97.5% of our water is salt water |
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| Where is Earth's fresh water located? |
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Definition
| 68.9% of all fresh water is frozen in glaciers, 30.8% is in groundwater, only 0.3% is in lakes and rivers |
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| The beginning point or source of a river or stream |
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| The place where a river or stream empties into a larger body of water like an ocean or lake |
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| What factors determine the rate of flow in a river or stream |
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Definition
| The slope of the landscape |
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| Material that is deposited by water, wind or glaciers such as sand, silt, small rocks |
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| Compare fast-moving and slow-moving rivers |
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Definition
| Fast moving water contains a lot of oxygen and can carry sediment along; slow moving water carries less oxygen and drops its sediment |
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| An inland body of standing water |
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| Nutrient poor lakes; they contain few plant and animal species |
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| Nutrient rich lakes; they contain large amounts of organic matter |
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| In a lake, the area closest to the shore; shallow water with many producers and consumers |
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| In a lake, the zone of open water; well lit with plankton |
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| In a lake, the zone of open water; well lit with plankton |
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| In a lake, the deepest zone; little light, colder, low oxygen levels |
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| Areas such as marshes, swamps. and bogs; saturated with water; supports aquatic plants |
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| An ecosystem that is formed where freshwater from a river merges with salt water from the ocean |
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| Ecosystems that are made of salt water |
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| The area where the ocean meets land; alternately cover and uncovered by sea water at high and low tide |
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| The top layer of open ocean water; light can penetrate it and autotrophs can do photosynthesis |
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| Area where sunlight cannot penetrate; dark and cold |
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| The ocean floor; contains sand, silt, dead orgamisms |
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| The deepest part of the oceans |
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| Large masses or coral - small organisms that make stony bodies; reefs support many other organisms |
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