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Natural Resources andEnvironmental Systems
Lesson Plan: NRES A1-1
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Anticipated Problems
1. How do natural resources and environmental systems compare?
2. How are natural resources classified?
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Terms
abiotic natural resources air atmosphere biosphere biotic natural resources climate domestication environmental systems
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Terms
exhaustible natural resource fossil fuels hydrosphere inexhaustible natural resource lithosphere minerals natural resources nonrenewable natural resources
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Terms
renewable natural resources soil water water cycle wildlife wind
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Comparing Natural Resources and
Environmental Systems
Differentiating between natural resources and environmental systems is often not easy.
They are closely related fields with much overlap.
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Comparing Natural Resources and
Environmental Systems
Natural resources are those things found in nature, such as forests, mineral deposits, soil, and fresh water, that have economic value.
Air and wind, fossil fuels, minerals, people, soil, sunlight, water, and wildlife are types of natural resources.
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Atmosphere
The atmosphere is the gaseous layer that encompasses the earth.
Air is the mixture of gases that make up the atmosphere.
Wind is the movement of air.
Water vapor, gases, and particulates can be found in the atmosphere.
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Fossil Fuels
Fossil fuels are fuels formed from the remains of dead animal and plant material deposited in a previous geologic time, typically millions of years ago.
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Fossil Fuels
The energy in the fuels comes from the high carbon and hydrogen content of the deceased animals and plants.
The burning of fossil fuels produces pollution and carbon dioxide linked to global warming. Fossil fuels come in different
forms, including peat, petroleum, natural gas, and coal.10
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Minerals
Minerals are natural inorganic substances on or in the earth. Not living things Mined from the earth Used to produce everything from iron to
brick
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Other Natural Resources
People help determine how other natural resources are used. As the human population has increased,
there has been a greater demand for natural resources.
The wise use of resources is necessary to ensure their future availability.
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Soil
Soil is the outer layer of the earth’s surface that supports life. Plants obtain nutrients, water, and
support from soil and convert radiant energy from the sun to chemical energy.
Humans and other animals obtain sustenance from plants.
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Soil
Soil takes many years to form, but it can be easily lost by erosion. Therefore, soil must be protected in
order for it to continue to be a resource.
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Sunlight
Sunlight is the source of almost all the energy used on the earth. The light from the sun produces solar
energy. Plants use this energy in the process of
photosynthesis. People can also use this
energy if it is harnessed using solar collectors.
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Water
Water is a tasteless, colorless, liquid natural resource. All living things need water to survive. Naturally occurring compound made up
of two atoms of hydrogen and one atom of oxygen
Three forms: solid, liquid, and gas
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Water Cycle
The water cycle is the movement of water from the earth’s surface to the atmosphere and back to the surface.
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Wildlife
All the plants and animals that live in the wild are called wildlife. These plants and animals have not been
domesticated. Domestication is the control of plants
and animals by humans.
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Environmental Systems
Environmental systems are all the interactions between climate, the solid earth (lithosphere), water (hydrosphere), and the living things on Earth (biosphere).
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Climate
Climate is the average weather conditions in a region over a period of years.
Elements: Temperature Precipitation Wind Humidity Fog Cloud cover
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Climate
A mixture of Nitrogen (78%) Oxygen (21%) Traces (remaining 1%) of carbon dioxide,
argon, water vapor, and other components
Pollutants produced from natural fires accumulate in the atmosphere.
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Lithosphere
The combination of soil and rock that makes up the earth’s crust is called the lithosphere. Thin crust covering the molten part of
the earth The upper 1 kilometer of the lithosphere
interacts with the biosphere or the living things on Earth.
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Lithosphere
Main constituents of the lithosphere are: Oxygen (47%) Silicon (28%) Aluminum (8%) Iron (5%) Calcium (4%) Sodium (3%) Potassium (3%) Magnesium (2%) in a crystalline state
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Lithosphere
The lithosphere is the main source of pollutants as raw materials are extracted by life and economic activities. Volcanic eruptions are a natural release
of some pollutants. Pollutants from fossil fuels are the result
of artificial extraction and combustion.
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Hydrosphere
The hydrosphere is all the water on Earth, whether liquid, solid, salty, or fresh. Serves as a solvent for elements such as
sodium, magnesium, calcium, chloride, and sulphate dissolved in it.
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Hydrosphere
The oceans account for 97 percent of water forms, ice for 2 percent, and rivers, lakes, groundwater, and atmospheric vapor for 1 percent. Water is an important accumulator of
pollutants.
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Biosphere
All the communities of living things on Earth compose the biosphere. All living organisms, including animals
and vegetation, are temporary accumulators (mercury, lead) and sources for pollutants (natural fires).
The biosphere also includes dead organisms and decayed organic matter.
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Classifying Natural Resources
One way to classify natural resources is by their source of origin. BioticAbiotic
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Biotic Natural Resources
Natural resources of biotic origin come from the biosphere.
Biotic natural resources are resources that may be living or were living at one time. Trees, animals, and microorganisms are
living natural resources. Nonliving biotic natural resources
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Abiotic Natural Resources
Abiotic natural resources are resources that come from nonliving, nonorganic materials. Land Water Air Minerals
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Inexhaustible Natural Resource
An inexhaustible natural resource is a resource that will not run out in the foreseeable future. Few resources are inexhaustible. Sunlight, wind, and
geothermal energy
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Exhaustible Natural Resource
An exhaustible natural resource is a resource that is available in limited quantity and can be completely used. Some exhaustible natural resources are
renewable, whereas others are nonrenewable.
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Renewable Natural Resource
Renewable natural resources are resources replaced naturally.
Fresh water, forests and other vegetation, and wildlife. (replenished and used again)
Soil is also considered a renewable resource, (may take many years for it to be replenished)
If the consumption of renewable natural resources exceeds the regeneration of the resources, they may become exhausted.
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Renewable Natural Resource: Fresh Water
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Nonrenewable Natural Resource
Nonrenewable natural resources are resources that cannot be replaced after use. Minerals and fossil fuels are two types of
nonrenewable natural resources. Fossil fuels are replaceable, from a
human-use perspective they are considered nonrenewable.
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Nonrenewable Natural Resource: Copper
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Review
What are those things found in nature, such as forests, mineral deposits, soil, and fresh water, that have economic value?
What are the interactions between climate, the solid earth (lithosphere), water (hydrosphere), and the living things on Earth (biosphere)?
Name four abiotic natural resources.38