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 RESOURCE Natural Resource - Any natural material that is used by

humans or

Resources that the Earth provides for you

EX: Water, Petroleum, Minerals, Forests

RENEWABLE RESOURCES

A 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 Resources A 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 RESOURCES

To conserve natural resources, you should try to use them

only when necessary.

3 R’s

Reduce

Reuse

Recycle

SOIL POLLUTION

How 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 trees

http://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 Rotation

Conservation Plowing

Windbreaks

Leaving soil fallow

Contour Plowing plowing fields along curves of slopes

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

Crop Rotation plant different crops in a field from year to year

Windbreak trees planted along the edge of a field

Terracing

Prevents erosion from heavy rains on steep hills

WATER POLLUTION

How can water be lost or cause

damage?

Point-Source Pollution- pollution that comes from one

specific site. EX: leak from a sewer pipe

WATER POLLUTION

How 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 Video

http://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 Pollution

How can Air cause damage or loss?

Air Pollution - The contamination of the atmosphere by the

introduction of pollutants from human and natural sources

Air Pollutants

PRIMARY POLLUTANTS

Industrial emissions

Vehicle Exhaust

Volcanic Ash

SECONDARY POLLUTANTS

The formation of smog

SOURCES OF HUMAN-CAUSED

POLLUTION

Industrial & Indoor Air Pollution

Acid Precipitation

The 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