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Earth Materials – Grade 3

Lesson 1 – Hook

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WHAT IS Pollution?

  • Pollution is any substance or object put into nature that causes negative changes. It exists in many different forms and is produced by a variety of sources.

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  • In fact, there are four main types of pollution.

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  • How many of them can you think of?
      • Where did they come from?
      • Who produced them?

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How many did you think of?

  • The four different types are…
    • Air pollution
    • Water pollution
    • Soil (also known as land) pollution
    • Noise pollution

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Air Pollution

  • Air pollution is anything that contaminates

(or dirties) the natural makeup and chemistry of the air.

  • It is produced by:
    • Manmade sources such as vehicle exhaust � and building construction
    • Natural sources such as forest fires, volcanic � eruptions and dry soil wearing away (erosion)

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Manmade �Air Pollution

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Car Exhaust

Factory Smoke

Aerosol

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Natural Air Pollution

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Volcanic

Eruptions

Soil Erosion

Forest Fires

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Water Pollution

  • Water is polluted when it is no longer pure (or clean) because of chemicals or bacteria.
  • It is produced by many sources including…
    • Litter (garbage)
    • Sewage
    • Soil fertilizers
    • Oil spills from tankers and ships
    • Chemical spills from companies

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Water Pollution

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Soil Pollution

  • Soil pollution is contamination of earth that stops or slows down natural growth and balance to the land

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Four Causes of Soil Pollution

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Oil Spills

Sewage

Litter

Pesticides

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Noise Pollution

  • Noise pollution is when humans, animals or machines make high levels of noise.
  • This can cause hearing loss in humans AND animals.

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What produces noise pollution?

Airplanes

Industrial

Machinery

Construction

and demolition

Concerts

Traffic

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Who or what does pollution affect?

EVERYONE and EVERYTHING!

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What can you do to help?

  • Walk or bike, rather than �driving, whenever possible!
  • Make a compost for �garbage to make fresh �clean soil!
  • Recycle, Recycle, Recycle!

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  • What else can �you think of �to help reduce �pollution?

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