CHAPTERS 5.1, 10.4, 11.4 & 15.4

NATURAL RESOURCES & CONSERVATION

E.Q. – How can water, soil & air be recycled?

Standard S6Ej. Describe methods for conserving natural resources such as water, soil, and air.

NATURAL RESOURCENatural Resource - Any natural material

that is used by humans orResources that the Earth provides for you

EX: Water, Petroleum, Minerals, Forests

RENEWABLE RESOURCESA Natural Resource that can be replaced at

the same rate at which the resource is used.

EX: Trees,Wind, Water

Although many resources are renewable, they still can be used up before they can be renewed.

Nonrenewable ResourcesA resource that forms at a rate that is much

slower than the rate at which it is consumed.A fossil fuel is a nonrenewable energy resource

formed from the remains of plants & animals that lived long ago.

EX: Coal, Petroleum (Oil), Natural Gas

Once they’re gone, they’re gone!!

CONSERVING NATURAL RESOURCESTo conserve natural resources, you should

try to use them only when necessary.

3 R’sReduceReuseRecycle

SOIL POLLUTIONHow can soil be lost or damaged?

Exhausted – lose fertility because crops planted year after year.

Polluted – mining, chemical spills, HUMANS

Erosion – wind, water

Desertification – once wet area, undergoes drought conditions OR grazing animals OR cutting treeshttp://www.gly.uga.edu/railsback/CTW/ChinaDesertification.jpeg

HOW CAN SOIL BE CONSERVED?

Soil conservation is the management of soil to prevent destruction.

Contour Plowing Crop RotationConservation PlowingWindbreaksLeaving soil fallow

Contour Plowing plowing fields along curves of slopes

Conservation Plowingdead weeds and stalks are left in the ground from year to year

Crop Rotationplant different crops in a field from year to year

Windbreaktrees planted along the edge of a field

TerracingPrevents erosion from heavy rains on steep

hills

WATER POLLUTIONHow can water be lost or cause damage?Point-Source Pollution- pollution that comes

from one specific site. EX: leak from a sewer pipe

WATER POLLUTIONHow can water be lost or cause damage?Nonpoint-source Pollution – Pollution that

comes from many sources; Reaches bodies of water as runoff

EX: street gutters, fertilizers, eroded soil, drainage from mines

Water Conservation Videohttp://www.sesamestreet.org/video_player/-

/pgpv/videoplayer/0/3a878aa1-1cff-464d-a0b0-64b204cdce3c/water_conservation

How can Water be conserved?By using only the water needed

By recycling water

By using drip irrigation systems.

Waste water can be treated by sewage treatment plants and septic systems

Air PollutionHow can Air cause damage or loss?Air Pollution - The contamination of the

atmosphere by the introduction of pollutants from human and natural sources

Air PollutantsPRIMARY POLLUTANTSIndustrial emissionsVehicle ExhaustVolcanic Ash

SECONDARY POLLUTANTSThe formation of smog

SOURCES OF HUMAN-CAUSED POLLUTIONIndustrial & Indoor Air PollutionAcid PrecipitationThe Ozone Hole

How Can Air Be Conserved?By legislation, such as the Clean Air Act

By Technology such as scrubbers - devices used to remove pollutants before they are released by smokestacks

By changes in Lifestyle

Final Countdown

One Important fact from lesson about Air

One Important fact from lesson about Water

One Important fact from lesson about Soil

Name an example of a renewable resource.

Name an example of a non-renewable resource.

One way in which something you learned TODAY relates to something you learned previously