Hydrosphere (Day 2)Day-2).pdf · Objectives: 1) Define water shed. 2) Draw a simple picture that...
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1 Objectives: 1) Define water shed. 2) Draw a simple picture that illustrates water movement in a watershed. 3) What watersheds does Con. Creek belong to? 4) What are some sources of groundwater pollution? A Watershed Definition Definition Definition Definition • The total land area that contributes water to a stream or lake. • Also called a “Drainage Basin” Feel the Flow – Watershed boundaries are the highest points of land – Waterways are the lowest points of land Water follows the path of least resistance… DOWNHILL Scale Scale Scale Scale • Watersheds work on different scales * small creeks have small watersheds Allegheny River Connoquenessing Creek Little Connoquenessing Creek * large creeks include the watersheds of many small creeks * rivers include the combined watersheds of many large creeks Pennsylvania’s Watersheds • The Six Watersheds in Pennsylvania http://www.dep.state.pa.us/dep/deputate/watermgt/Wc/Subjects/WSNoteBks/shedtable.htm The Ohio River Watershed • The land area drained by the Ohio River PA OH KY WV VA NC TN MD NJ IN IL DE
Transcript of Hydrosphere (Day 2)Day-2).pdf · Objectives: 1) Define water shed. 2) Draw a simple picture that...
1
Objectives: 1) Define water shed. 2) Draw a simple picture that
illustrates water movement in a watershed. 3) What watersheds
does Con. Creek belong to? 4) What are some sources of
groundwater pollution?
A WatershedA Watershed
DefinitionDefinitionDefinitionDefinition
• The total land area
that contributes
water to a stream or
lake.
• Also called a
“Drainage Basin”
Feel the FlowFeel the Flow
– Watershed boundaries are the highest points
of land
– Waterways are the
lowest points of land
Water follows the path
of least resistance…
DOWNHILL
Scale Scale Scale ScaleScale Scale Scale Scale
• Watersheds work on
different scales
* small creeks have
small watersheds
Allegheny River
Connoquenessing Creek
Little
Connoquenessing
Creek
* large creeks include
the watersheds of
many small creeks
* rivers include the
combined watersheds of many large creeks
Pennsylvania’s WatershedsPennsylvania’s Watersheds
• The Six Watersheds in Pennsylvaniahttp://www.dep.state.pa.us/dep/deputate/watermgt/Wc/Subjects/WSNoteBks/shedtable.htm
The Ohio River WatershedThe Ohio River Watershed
• The land area drained by the Ohio River
PA
OH
KY
WV
VA
NC
TN
MD
NJ
INIL
DE
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The Ohio River WatershedThe Ohio River Watershed
• The land area drained by the Ohio River
PA
OH
KY
WV
VA
NC
TN
MD
NJ
INIL
DE
The Ohio River WatershedThe Ohio River Watershed
• The land area drained by the Ohio River
PA
OH
KY
WV
VA
NC
TN
MD
NJ
INIL
DE
The Allegheny
River Watershed
The Allegheny
River Watershed
• The land area
drained by the
Allegheny River
Water You Don’t SeeWater You Don’t See
Groundwater DefinitionGroundwater DefinitionGroundwater DefinitionGroundwater Definition
• Water beneath the earth's surface in a
zone of saturation
http://ga.water.usgs.gov/edu/earthgwaquifer.html
Unsaturated Zone
Saturated Zone
Water Table
Groundwater
Rock On!Rock On!
• Rocks, made of many
chemical compounds,
slowly dissolve in
groundwater
• Some types of rock
slow the movement of
groundwater and
direct its flow
http://www.gpc.peachnet.edu/~pgore/geology/geo101/sedstr.htm
Deep Down PollutionDeep Down Pollution
• Polluted surface water
contaminates
groundwater supplies
• Pollution can leach
from landfills, farms,
and lawns
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We Use GroundwaterWe Use Groundwater
• The main source of
drinking water
• Used for agricultural
practices
• Supplies streams with
water between rain
events TransportationTransportationTransportationTransportation
RecreationRecreationRecreationRecreation
IndustryIndustryIndustryIndustry
AgricultureAgricultureAgricultureAgriculture
Waste TreatmentWaste TreatmentWaste TreatmentWaste Treatment
How We Use WaterHow We Use Water
Errors of the Past…and PresentErrors of the Past…and Present
http://www.wqed.org/erc/pghist/units/WPAhist/index.html
