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Science Vocabulary
Life in the Biosphere
| Vocabulary | Deifnition |
|---|---|
| biosphere | a narrow layer near the earth's surface where life exists |
| biomes | major land ecosystems |
| climate | long term weather patterns in an area, most affects plants in a biome |
| intertidal zone | closest to shore, organisms live both in and out of water |
| neritic zone | beyond the intertidal zone, no breaking waves, constant temperature |
| open sea zone | beyond the neritic zone, where the continental shelf drops off |
| plankton | microscopic organisms, the basis for most food chains in the open oceans |
| abyss | below 2000 meters, no sunlight, very cold, few organisms, the largest zone |
| fast moving bodies of water | streams contain little life |
| slow moving bodies of water | rivers and lakes, contain more living things |
| estuary | where a river and ocean meet (ex: mud flats, salt marches, swamps) |
| brackish water | mixture of salt and fresh water |
| tropical rain forest | over 400 cm of rain each year, tall trees with large leaves, constant temperatures |
| deciduous forest | 75 cm of rain each year, cold winters & warm summers, hardwood trees |
| deciduous trees | lose their leaves each year |
| boreal forest | 60 cm of rain each year, very cold winter & cool summer, mainly conifer trees |
| conifers | produce cones, have needles, don't lose their needles all at once |
| tundra | 25 cm of rain each year, long & dark winters, 1 - 2 months summers, permafrost |
| permafrost | below a thin layer of soil it is always frozen |
| grasslands | 50 cm of rain each year, mainly 2 m grass, cold/snowy winters & hot/dry summers |
| deserts | less than 25 cm of rain each year, can be both hot and dry |
| climotogram | a graph of both temperature and precipitation |
| precipitation | the amount of water (rain/snow) that falls annually |
| marine | of or pertaining to the sea; existing in or produced by the sea, estuaries and many zones |
Created by:
bekah0515
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