NATURAL RESOURCES & CONSERVATION

1. NATURAL RESOURCES & CONSERVATION CHAPTERS 5.1, 10.4, 11.4 & 15.4

2. E.Q. – How can water, soil & air be recycled? • Standard S6Ej. Describe methods for conserving natural resources such as water, soil, and air.

3. 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

4. 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.

5. 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!!

6. CONSERVING NATURAL RESOURCES • To conserve natural resources, you should try to use them only when necessary. • 3 R’s • Reduce • Reuse • Recycle

7. 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 trees http://www.gly.uga.edu/railsback/CTW/ChinaDesertification.jpeg

8. 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

9. Contour Plowing plowing fields along curves of slopes

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

11. Crop Rotationplant different crops in a field from year to year

12. Windbreaktrees planted along the edge of a field

13. Terracing • Prevents erosion from heavy rains on steep hills

14. 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

15. 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

16. Water Conservation Video • http://www.sesamestreet.org/video_player/-/pgpv/videoplayer/0/3a878aa1-1cff-464d-a0b0-64b204cdce3c/water_conservation

17. 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

18. 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

19. Air Pollutants PRIMARY POLLUTANTS • Industrial emissions • Vehicle Exhaust • Volcanic Ash SECONDARY POLLUTANTS • The formation of smog

20. SOURCES OF HUMAN-CAUSED POLLUTION • Industrial & Indoor Air Pollution • Acid Precipitation • The Ozone Hole

21. 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

22. Final Countdown One way in which something you learned TODAY relates to something you learned previously Name an example of a renewable resource. Name an example of a non-renewable resource. One Important fact from lesson about Air One Important fact from lesson about Water One Important fact from lesson about Soil