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Science Vocabulary

Life in the Biosphere

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