Class 6 Science
Question 1: Which kind of garbage is not converted into compost by the redworms?
Answer: Non-biodegradable substances cannot be converted into compost by redworms.
Question 2: Have you seen any other organism besides redworms, in your pit? If yes, try to find out their names. Draw pictures of these.
Answer: Some of the organisms, which can be found in compost pit are as follows: Cockroach, other insects, snail, etc.
Question 3: Is garbage disposal the responsibility only of the government?
Answer: Garbage disposal is a responsibility of both the public and the government. As responsible citizens, we should avoid being litterbugs. We should not litter at public places. Proper sanitation can be maintained only with good cooperation from the public.
Question 4: Is it possible to reduce the problems relating to disposal of garbage?
Answer: If we can make a conscious effort to reduce the amount of garbage we generate, then it is possible to reduce the problems relating to disposal of garbage. Moreover, we should take certain precautions while throwing the garbage. We should segregate the garbage into recyclable and non-recyclable components and throw them in appropriate garbage bins.
Question 5: What do you do with the leftover food at home?
Answer: At my home, everybody tries to create the least amount of leftover. The leftover food is usually given to stray animals so that it can be put to good use.
Question 6: If you and your friends are given the choice of eating in a plastic plate or a banana leaf platter at a party, which one would you prefer and why?
Answer: I will prefer to eat on a banana leaf platter. Banana leaf is biodegradable, while plastic plate is not. Hence, it is better to use banana leaf platter.
Question 7: Collect pieces of different kinds of paper. Find out which of these can be recycled.
Answer: Paper which is not plastic coated can be recycled. On the other hand, plastic coated paper cannot be recycled.
Question 8: 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?
Answer: The recycled paper looks coarse, while a new sheet of paper looks smooth. Grains of recycled paper can be easily seen through a magnifying glass.
Question 9: Collect different kinds of packaging material. What was the purpose for which each one was used? Discuss in groups.
Answer: Different packaging materials are used for different purposes. Sometimes, the value of the packed material is also a deciding factor in selecting a particular packaging material. A packaging material serves many purposes. It helps in increasing the shelf life of the product, and makes it easier to transport the product. Moreover, the packaging material also enhances the appeal of a product.
Question 10: Give an example in which packaging could have been reduced?
Answer: In many cases, lot of packaging material is used than what is required. Some dresses come packed in plastic cases which are moulded according to the shape of the packed material. These dresses could have been packed in cardboard boxes as well; to reduce the amount of plastic.
Question 11: Write a story on how packaging increases the amount of garbage.
Answer: Today is John’s birthday. He has invited many friends for the party. All the friends have brought gifts for him. John’s parents have also purchased return gifts for his friends. Once the birthday party is over, John sits on his couch and opens each gift to see what is inside. Within no time, his whole room is full of empty cartons, cardboard boxes, cellophane, ribbons, etc. which had been used to pack the gift. John is worried at seeing the amount of garbage in his room.
Question 12: Do you think it is better to use compost instead of chemical fertilisers? Why?
Answer: Compost is made from organic materials, while chemical fertilisers are made from synthetic chemicals. Use of compost does not pollute the soil. Chemical fertilisers result in soil pollution and water pollution. Hence, use of compost is better than the use of chemical fertilisers.
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