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Wetlands - Abbreviated list
Wetlands - Terms for Study Guide
26
Science
6th Grade
06/01/2009

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Term
hydric soil
Definition
flooding during enough of the growing season to develop
Term
ecologist
Definition
a person who studies ecosystems
Term
river systems
Definition
the network that includes all the waters feeding into the main river, and all the water branching out from it
Term
contiguous
Definition
touching an edge (as in the 48 contiguous states)
Term
tributaries
Definition
a river or stream that flows into a larger river
Term
distributaries
Definition
a river or stream that flows away from the main river
Term
sea level
Definition
the average level of the Earth’s oceans
Term
sea level
Definition
the average level of the Earth’s oceans
Term
source
Definition
the area where a river begins
Term
mouth
Definition
the place where a river flows into another body of water (Ends)
Term
drainage basin
Definition
the area drained by a river and all its tributaries
Term
sediment
Definition
clay, silt, fine sand, and other materials that are carried by a river and eventually settle as the water slows down
Term
deposition
Definition
the process by which sediments settle
Term
floodplain
Definition
the land that a river floods when it overflows its banks
Term
subsidence
Definition
the process in which land compacts and sinks over time
Term
delta
Definition
a deposit of sediments, usually in a triangular shape, that forms at the mouth of a river
Term
floods
Definition
an overflowing of water into a normally dry area
Term
hydrosphere
Definition
the part of the Earth’s surface consisting of liquid and frozen water
Term
geosphere
Definition
Earth’s land surface and interior
Term
biosphere
Definition
the part of Earth in which life exists
Term
abiotic
Definition

nonliving; example:

 

__________________

Term
biotic
Definition

living or pertaining to life; example:

 

__________________

Term
producers
Definition

organisms that can make their own food; example:

 

__________________

Term
consumers
Definition
organisms that are unable to make their own food; they must eat other organisms for energy; example: __________________
Term
detritus
Definition
a mixture of bacteria and broken-down plant or animal remains
Term
saltwater intrusions
Definition
the process by which salt water moves inland, invading freshwater environments
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