introduction to natural resources objective: by the end of this lesson students will be able to know...
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INTRODUCTION INTRODUCTION TO TO
NATURAL RESOURCESNATURAL RESOURCES
Objective:Objective:By the end of this lesson students By the end of this lesson students
will be able to know and will be able to know and understand what the 8 natural understand what the 8 natural
resources are. resources are.
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Our Natural ResourcesOur Natural Resources• Resources found naturally in
nature– Cannot make more, but can be renewed
– Natural Resources essential for living• Oxygen• Water
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Kinds of Natural Kinds of Natural ResourcesResources
• Wildlife• Air • Wind• Soil• Water• Minerals• Fossil Fuels• Sunlight
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WildlifeWildlife• Plant, animal, and any other thing that
lives in the wild.– NOT domesticated– Examples:
Fungi
Wild flowers
Trees
Insects
Fish
Snakes
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AirAir• Mixture of gases that surrounds
the earth.– Most important Natural Resource
– All living things must• Oxygen is the most important of air
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Los Angeles County air exceeds EPA air pollution standards by 70%.
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WindWind• Large-scale air movement across
the earth surface– Wind power is harnessing wind movement.
• Windmills and Turbines collect the power and use it to pump water, generate electricity, etc.
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SoilSoil• Material that supports all living
things – Naturally occurring resource
– Basis for all living things– Plants need soil to grow– Animals eat plants– Remains decay and become soil again
– Damaged and lost by erosion
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WaterWater• Colorless, transparent, odorless,
tasteless liquid that forms the seas, lakes, rivers, and rain
• All living things must
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– Only natural resource found in 3 forms– Solid (ice)– Liquid (water)– Gas (vapor)
– Flowing water can be used as a power source
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MineralsMinerals• Natural inorganic substance on
or in the earth.– INORGANIC SUBSTANCE
• Does not have the structure of living things, does not contain carbon.
– Examples:• Iron• Precious Metals (Copper, Gold, Silver,
Nickel)• Granite, Sand, Gravel
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Fossil FuelsFossil Fuels• Materials used to provide
energy– Created by the decomposition of plants
and animals
– Three main groups:– Petroleum (gas, oil, plastics)– Natural Gas– Coal
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SunlightSunlight• Light and warmth of the sun
– Produces solar energy
– Used by plants in photosynthesis
– Life on earth depends on sunlight
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Assignment Assignment • You will make a chart of all 8
Natural Resources and how they are important to you – Must have:
• The name of all the Natural Resources • Picture of it • Why it is important to you
– They must be in color and neatly done
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RenewabilityRenewability• Whether or not a resource can
be restored after it has been used.
• Basis for classifying natural resources:– Renewable
– Nonrenewable
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Renewable ResourcesRenewable Resources• Can be replaced when used.
– Resource may renew itself and be used again, but renewing may take a long time
– Examples• Air• Soil• Wildlife• Plants• Water
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Nonrenewable Nonrenewable ResourcesResources
• Can not be replaced when used.– With careful management, some can be
reused.
– Examples • Minerals (Gold, Silver)• Fossil Fuels (Oil and Coal)
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A nonrenewable resource is a natural resource that is present in limited supplies and depleted by use. It's basically a limited resource that we are extracting from the ground faster than it can replenish itself. (9) Examples of nonrenewable resources are copper, gold, silver, zinc, aluminum, coal, oil and natural gas.
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ExhaustibilityExhaustibility• Whether or not the supply of a
resource is replenished as it is used.
• Some resources can be replenished; others cannot be replenished.
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Inexhaustible ResourcesInexhaustible Resources• Resources that are continually
being replenished.– Examples:
• Sunlight• Air & Wind• Water
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Exhaustible ResourcesExhaustible Resources• Resources that are available in
limited quantity that can be used up.– Examples:
• Minerals• Fossil Fuels• Soil (replaced so slowly)
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Words to know and rememberas you consider what
resources are renewable
InfiniteNo limitsExtending
indefinitely
FiniteLimited
Having a limited existence
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ConservationConservation• Using resources wisely.
– Resources are not abused, wasted nor destroyed.
– “Wise” is using a resource in ways that do not diminish its value and assure that supplies will be available for future generations.
• SUSTAINABLE RESOURCE USE is using resources so they last a long time.
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PreservationPreservation• Maintaining a natural resource
without using it up.– Resource is protected.– Set aside for future use.– People can view the resource, but cannot
harvest, mine or otherwise take it.– Examples:
• Wildlife Preserves and Refuges• Old Growth Forests protected from cutting
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Earth's natural resources need to stay healthy too!
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Assignment Assignment • You and a partner will make a list of all
the resources that can be either: – Preserved
– Sustainable
– Conserved
– Exhausted
– Inexhaustible
• Then you will explain why they are one of the five categories above and can they be renewed or are they nonrewable.
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WATER- inexhaustible Renewed
To clean the atmosphere and the environment, and to nourish plants and animals.
SOIL- exhaustible Renewed
To filter the water, provide nourishment for plants and some animals, and recycle material to be used again.
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PLANTS AND TREES- exhaustible To absorb carbon from the atmosphere and release oxygen.To supply food and medicine, and provide shelter for plants and animals.
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ATMOSPHERENonrewable Air surrounding the planet containing nitrogen, oxygen, water vapor, other gases, and many tiny particles.
To protect life on the planet, shielding it from harmful radiation from the sun.To provide a blanket of warmth around the planet.