Garbage in Garbage out - Worksheets

 CBSE Worksheet-01

Class – VI Science (Garbage in, Garbage out)

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1. Which of the following is biodegradable?
   1. Orange peels
   2. Aluminium foil
   3. Aluminium
   4. Plastic bottle
2. To reduce plastic waste we should
   1. Burn it
   2. Bury in the earth
   3. Dump it in sea
   4. Minimize its use
3. Example of household garbage is
   1. Crockery pieces
   2. Dal packets
   3. Vegetable peels
   4. All of these.
4. A person who separates articles into various categories and sell for recycling
   1. Vegetable seller
   2. Kabadiwala
   3. Factory worker
   4. House-cleaner
5. Match the followings:

   Column A	Column B
   a. Kitchen waste is	i. recyclable
   b. Aluminium cans are	ii. burning of garbage
   c. Plastics are	iii. non-biodegradable
   d. Burning of plastics	iv. bio-degradable
   e. Incineration	v. emit harmful gas

6. Fill in the blanks.
   1. Waste _______ is necessary to protect the environment.
   2. We should not _________ garbage.
   3. Waste material should be _______ into recyclable and non- recyclable.
   4. We should _________ the use of plastics.
   5. _______________ of plastic bag is a big problem.
7. What is vermicomposting?
8. List three ill-effects of plastics.
9. What are bio-degradable wastes?
10. Classify the following as bio-degradable and non-biodegradable substance.
    Vegetable peels, plastic bags, paper bags, Aluminium cans, cow dung, polythene.

CBSE Worksheet-01
Class – VI Science (Garbage in, Garbage out)
Answer key

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1. a
2. d
3. d
4. b
5. (a) – (iv), (b) – (iii), (c) – (i), (d) – (v), (e) – (iv).
6. 1. Management
   2. burn
   3. separated
   4. reduce
   5. disposal.
7. Vermicompost is a composting process where various species of worms mostly earthworms are used to decompose the organic waste. It is rich in nutrients and serves as an excellent organic fertilizer and soil conditioner.
8. Ill-effect of plastics are:
   1. Burning of plastics produce harmful poisonous gases.
   2. Toxic released during manufacturing of plastics are harmul to the environment.
   3. Plastic makes the soil infertile.
9. Those wastes that can be easily decomposed into harmless components in short interval of time due to action of microorganisms are called bio-degradable. For example vegetable wastes, paper, cloths etc.

10. Bio-degradable	Non-biodegradable
    Vegetable peels	Plastic bags
    Paper bags	Aluminium cans
    Cow dung	Polythene