Environmental Resources Unit

1
Environmental ResourcesUnit

• Natural Resources

2
Problem Area

• Introduction to Natural Resources

3
Exploring Natural Resources

• Lesson

4
What is around you?

• Examine your surroundings, write down everything
  that is living or was once living.
• Think about what you are wearing, where you are
  sitting, what you are writing on, etc.

5
Learning Objectives

• Define and identify types of natural resources.
• Distinguish between renewable and nonrenewable
  resources.
• Explain the difference between inexhaustible and
  exhaustible resources.
• Explain the concept of interdependent
  relationships.

6
Terms

• Air
• Atmosphere
• Climate
• Domestication
• Environment
• Exhaustibility

• Exhaustible natural resource
• Fossil fuels
• Inexhaustible natural resource
• Minerals
• Natural resource dependence

7
Terms

• Natural resources
• Nonrenewable natural resources
• Renewability
• Renewable natural resources

• Soil
• Water
• Water cycle
• Weather
• Wildlife
• Wind

8
Types of Natural Resources

• Resources that occur naturally in nature are
  known as natural resources.
• Natural resources can be found in our
  environment.
• The environment are the conditions that surround
  us.

9
Types of Natural Resources

• Natural resources cannot be made by man, but man
  can help ensure their continued existence.
• People need many natural resources to live.
• Other natural resources are used to make life
  easier.

10
Natural Resources Groups

• Air and wind
• Fossil fuels
• Minerals
• People
• Soil
• Sunlight
• Water
• Wildlife

11
Air and Wind

• The atmosphere is the area surrounding the Earth.
  
• Air is the mixture of gases that surrounds the
  Earth.
• Wind is the movement of the air.
• Water vapor, gases, and particulate can be found
  in the atmosphere.

12
Air and Wind

• The conditions found in the atmosphere are what
  causes weather.
• Weather is the condition of the atmosphere,
  including moisture, temperature, movement, and
  pressure.

13
Air and Wind

• The climate of an area helps determine which
  natural resources can survive in the area.
• Climate is the condition of the weather in a
  particular location.

14
Fossil Fuels

• Fossil fuels are natural resources used to
  provide energy.
• Fossil fuels took millions of years to make.
• They are the remains of decomposed plants and
  animals.
• Their energy comes from the energy produced by
  the plants and animals.

15
Fossil Fuels Groups

• Petroleum
• Natural gas
• Coal

16
Petroleum

• Liquid form of fossil fuels used to make gasoline
  and oils.

17
Natural Gas

• Gaseous form of fossil fuels used in heating and
  cooking.

18
Coal

• Solid form of fossil fuels used in factories and
  generating electricity.

19
Minerals

• Natural inorganic substances on or in the earth.
• Are not living things.
• Mined from the earth and are used to produce
  everything from iron to brick.
• Jewelry, coins, monuments, and concrete are also
  made from minerals.

20
People

• Help determine how other natural resources are
  used.
• As the population increases, natural resource use
  will increase.
• The wise use of resources is necessary to ensure
  their future availability.

21
Soil

• Outer layer of the earths surface that supports
  life.
• Plants grow in soil, humans and other animals eat
  plants, humans and animals produce waste that
  provides nutrients for plants to grow, and the
  cycle continues.
• However, soil can be easily eroded by misuse.
• Soil must be protected in order for it to
  continue to be a resource.

22
Sunlight

• 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.

23
Water

• A tasteless, colorless, liquid natural resource.
  All living things need water to survive.
• Water is a naturally occurring compound made up
  of two atoms of hydrogen and one atom of oxygen.
• Water can be found in three forms, solid, liquid,
  and gas.

24
Water Cycle

• Movement of water from the earths surface to the
  atmosphere and back to the surface.
• Water is continuously renewed through the
  hydrologic cycle.

25
Wildlife

• All of the plants and animals that live in the
  wild.
• These plants and animals have not been
  domesticated.
• Domestication is the control of plants and
  animals by man.

26
Renewable and Nonrenewable Resources

• One way to classify natural resources is based on
  their renewability.
• Renewability is whether or not a resource can be
  restored after use.
• Some natural resources can be renewed, others
  cannot.

27
Renewable Natural Resources

• Natural resources that can be replaced after use.
• They can be renewed and used again, but it may
  take many years.
• Soil is a renewable natural resource, however it
  is not a fast process.
• Plants and water are other renewable natural
  resources.

28
Nonrenewable Natural Resources

• Natural resources that cannot be replaced after
  use.
• Minerals and fossils fuels are two types of
  nonrenewable natural resources.

29
Inexhaustible and Exhaustible Natural Resources

• Exhaustibility refers to whether or not a natural
  resource can be replenished as it is used.
• As with renew ability, some resources can be
  exhausted, others cannot.

30
Inexhaustible Natural Resource

• A resource that is continuously replenished, the
  supply of the resource will not run out.
• Sunlight, wind, and water are inexhaustible
  natural resources.

31
Exhaustible Natural Resource

• A resource that is available in limited quantity
  and can be completely used.
• Exhaustible resources can be replaceable or
  irreplaceable.
• A replaceable natural resource can be
  replenished. Most wildlife are replaceable.
• An irreplaceable natural resource is gone once it
  is used. Fossil fuels and most minerals are
  irreplaceable.

32
Interdependent Relationships

• The idea that all natural resources depend on
  each other is known as natural resource
  dependence.
• This means that all living things depend on each
  other.

33
Natural Resource Dependence

• Humans need animals for food, clothing, and at
  one time for work.
• Humans and animals need plants to live.
• Plants are used for food and the plants help
  produce oxygen needed to breathe.

34
Natural Resource Dependence

• Plants depend on animals and humans.
• Animals, including humans, give off carbon
  dioxide that the plants need to live.

35
Natural Resource Dependence

• When animals die, they decompose.
• The decomposition process releases minerals back
  into the soil.
• Plants can use these minerals for growth.

36
Review/Summary

• Define and identify types of natural resources.
• Distinguish between renewable and nonrenewable
  resources.
• Explain the difference between inexhaustible and
  exhaustible resources.
• Explain the concept of interdependent
  relationships.

37
Environmental ResourcesUnit

• Natural Resources

38
Problem Area

• Introduction to Natural Resources

39
Understanding Human Demands on Natural Resources

• Lesson

40
Could all your aunts, uncles and cousins live
with you?

• Write down the number of people in your immediate
  family.
• Count the number of aunts, uncles, cousins, and
  grandparents you have.
• Add this to the number of people in your
  immediate family.
• What would happen if you all had to live in one
  house?
• Consider the amount of room that many people
  would take up and how much food and water theyd
  need.

41
Learning Objectives

• Explain how humans use natural resources.
• Describe human population trends.
• Identify the urban and rural impacts of natural
  resource use.
• Explain the impact of recycling and reusing
  resources.

42
Terms

• Consumptive use
• Demographics
• Demography
• Land-use planning
• Non-consumptive use

• Population
• Recycling
• Reusing
• Sustainability
• Zoning

43
Human use of Natural Resources

• Humans use natural resources to help meet their
  three basic needs.
• The three basic needs of humans are food,
  clothing, and shelter.
• The use of natural resources to meet these needs
  is in two forms, consumptive use and
  non-consumptive use.

44
Consumptive Use

• Using a natural resource so that the amount used
  no longer exists.
• Each time that resource is used, its supply is
  reduced.
• An example of consumptive use is hunting.
• Once that animal is killed and removed from the
  wild, it no longer exists.

45
Non-consumptive Use

• Using a natural resource without reducing its
  supply.
• An example of non-consumptive use is watching
  wildlife.
• It is possible to enjoy the beauty of the
  wildlife without killing or removing it from the
  wild.
• It is being used for enjoyment, not being
  consumed.

46
Human Population Trends

• Population is the number of people in a given
  area.
• Changes in the population of an area occur over
  time as an area develops.

47
Human Population Trends

• The population of the earth is currently 6
  billion people.
• That number is predicted to nearly double over
  the next 50 years.

48
Demography

• The study of the human population.
• It is studied by people called social scientists.
  
• Demographics are the data collected about the
  human population.

49
Human Impact on Natural Resources

• Virtually all human activities impact natural
  resources.
• From the use of water to bathe to the use of
  animals for food, natural resource use is
  unavoidable.

50
Urban and Rural Impacts on Natural Resource Use

• The difference in impact between urban and rural
  areas is determined by their population density.

51
Urban Impacts

• People live closer together in urban areas.
• Therefore, urban areas have a more dense
  population.

52
Land-use Planning

• Deciding how land will be used.
• In order to use land in the best possible way,
  people depend on land-use planning.
• The plan developed should include guidelines on
  how to use the land for agricultural, commercial,
  and residential areas.

53
Land-use Planning

• The goal of land-use planning should be to help
  preserve agricultural and wildlife areas.
• Zoning may be necessary to keep areas from being
  used in ways that are not planned for.

54
Zoning

• Zoning is setting aside certain areas of land for
  specified use.

55
Land-use Planning

• In order to protect our resources, urban and
  rural areas must work together.
• Urban areas rely on rural areas to provide them
  with quality water, a consistent food supply, and
  materials to build their homes.
• Rural areas depend on urban areas to do their
  best to keep the environment clean and healthy.

56
Recycling and Reusing Natural Resources

• The demand for natural resources can be reduced
  if we recycle the ones we currently use.
• Trees, minerals, and water are examples of
  natural resources that can be recycled and
  reused.

57
Recycling and Reusing Natural Resources

• Following through with these practices can ensure
  the sustainability of natural resources.
• Sustainability is going about life so that
  resources are available for future generations to
  use.

58
Recycling

• Using a product or the materials to make a
  product again.
• Aluminum, iron, plastic, paper, and glass are
  examples of items that can be recycled.
• Items can be recycled at recycling centers.

59
Reusing

• Using a product again and again without
  re-manufacturing.
• Examples of reusing a product include using
  grocery store bags as lunch sacks and refilling
  plastic water bottle with tap water to drink or
  to use as a watering can.

60
Review / Summary

• Explain how humans use natural resources.
• Describe human population trends.
• Identify the urban and rural impacts of natural
  resource use.
• Explain the impact of recycling and reusing
  resources.