List the biodegradable and non-biodegradable waste products in your school What are the best ways to get rid of this garbage?
Biodegradable wastes:
(i) Paper container
(ii) Chalk boxes
(iii) Pencil scraps
(iv) Faeces and urine
(v) Loose and tom waste paper of exercise notebooks and diaries
(vi) Dropout leaves and twigs
(vii) Fruit peels and flower wastes
Non-biodegradable wastes:
(i) Broken glass wares
(ii) Plastic and geometrical instruments
(iii) Plastic and polythene containers
(iv) Wrappers of toffee, aluminium foil
(v) Broken iron wire pieces
Disposal of Wastes:
Biodegradable garbage can be put in a pit made in one comer of the school compound. Cover the garbage with soil, spray some quantity of water. When this pit is full of degradable items cover it with a mixture of dung and clay for a few weeks. .
After a few weeks when an odour stops coming out from the pit. It indicates that all the degradable material has been converted into compost manure.
The non-biodegradable garbage can be sold to Kabari or can be dumped in a landfill.
Observe the bins and waste material heaps and suggest what materials can be used for preparing handicrafts materials.
Can you make something useful of these waste material?Powder containers, cold-drink cans, plastic bottles, shoe-box.
What suggestions you will give to members of locality to solve the problem of waste material?
(a) Collect pieces of different kinds of paper. Find out which of these can be recycled,
(b) With the help of a lens look at the pieces of paper you collected for the above question. Do you see any difference in the material of recycled paper and a new sheet of paper?
(a) Collect pieces of different kinds of paper. Find out which of these can be recycled,
(b) With the help of a lens look at the pieces of paper you collected for the above question. Do you see any difference in the material of recycled paper and a new sheet of paper?
Discuss:
(a) Is garbage disposal the responsibility only of the government?
(b) Is it possible to reduce the problems relating to disposal of garbage?
(a) Which kind of garbage is not converted into compost by the redworms?
(b) Have you seen any other organism besides redworms, in your pit? If yes, try to find out their names. Draw pictures of these.
Municipality provides two types of dustbins for garbage collection. One coloured with blue colour and other with green colour. From following wastes which you will put in the which dustbin?
Plastic materials, metals and glass items, wastes of plants and animals, peels of fruits and vegetables, dried leaves and twigs, remains of meat like flesh and hopes.
Can you replace the following packaging material with those which can be recycled or reused.
(1) Milk packets of polythene.
(2) Dry eatables in polythene.
(3) Gift items packed with shiny material.
(4) Glass tumblers packed in thermocole box.
(a) What do you do with the left over food at home?
(b) If you and your friends are given the choice of eating in a plastic plate or a banana leaf plotter at a party, which one would you prefer and why?
Why should we not bum dried plant leaves and husk? What is the best way to get rid of them?
List the biodegradable and non-biodegradable waste products in your school What are the best ways to get rid of this garbage?
(a) Collect different kinds of packaging material. What was the purpose for which each one mas used? Discuss in groups.
(b) Give an example in which packaging could have been reduced.
(c) Write a story on how packaging increases the amount of garbage.
We should not add wastes containing salts, pickles, oil, vinegar, meat and milk products in vermicomposting pit to feed the redworms. Why?