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GRADE 4 (Waste Materials)

  •  English    24     Public
    Lesson 1.3
  •   Study   Slideshow
  • A material or substance can be defined as a material which can be decomposed easily by bacteria or any other natural organisms and not being the part of pollution is called?
    Biodegradable Materials
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  • Give 3 example of Biodegradable wastes
    ...
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  • These material can be defined as a type of material which cannot be broken down by natural organisms and serve as a source of pollution.
    Nonbiodegradable
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  • Give 3 examples of Nonbiodegradable Wastes
    ...
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  • How can you help solve waste problems in your community?
    ...
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  • What is the most harmful effect of Nonbiodegradable Wastes?
    Pollution
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  • Give 3 examples of organic waste
    ...
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  • What should we do to save energy?
    Conserve water and electricity, use recyclable materials
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  • What is the cause of decay?
    decomposers like bacteria, fungi, worms, insects etc.
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  • How should we dispose leftover food?
    composting
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  • How to identify spoiled food?
    ...
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  • What are the 3 classification of waste?
    unused, unwanted and spare
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  • What should we do to the unwanted waste?
    Send them to Recycling factories
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  • Give 2 ways of making wastes useful
    ...
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  • What are the ways on recycling plastic bottles?
    ...
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  • What are the 3R techniques to practice zero waste management?
    Reduce, Reuse and Recycle
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