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Have three types: Swamp,
Bog, and Marsh
Shallow layer of water
Can have salt, fresh, or
maybe a bit of both
Might only be wet some of
the year
A transition zone between
land and water
Controls flooding
Traps nutrients
Filters sediments
Breaks down pollutants
Recharges groundwater
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Are endangered
and disappearing
due to human
activity
Contain water
Provide temporary
homes for
migratory birds
Both of their
names relate to
water (latin
“aestus” for tide)
Contain lots of
plant life
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An actual body of water
Only has one type
Only has brackish water
Has water year-round
(because it’s a body of
water)
A transition zone between
river and ocean
Lots of cities are located
along estuaries
Important for trade
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Cool, poorly drained
area with moss
Cool northern climates
Collect excess
rainwater
Acidic water
Home to
animals and
plants
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Flooded
Forest
Covered with
Trees and
thin layer of
shrubs
water
sprouting
from water,
cypress trees,
willows, oaks,
vines
Warm,
humid, where
trees can
quickly grow
Home to
animals and
plants
Covered
with water
all or part
of year
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Humid
climates
Serves as
filters
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Flooded
grassland
Grasslike
plants,
cattails,
reeds
Usually
warm and
humid