Revision Notes for CBSE Class 6 Science Chapter 16 - Free PDF Download
Free PDF download of Class 6 Science Chapter 16 - Garbage In, Garbage Out Revision Notes & Short Key-notes prepared by expert Science teachers from the latest edition of CBSE(NCERT) books. Register Online for NCERT Class 6 Science tuition on Vedantu.com to score more marks in CBSE board examination.
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FAQs on Garbage In, Garbage Out Class 6 Notes CBSE Science Chapter 16 [Free PDF Download]
1. How to make a precise study plan for Chapter 16 of Class 6 Science?
The strategy given below will help students in making an adequate study plan for Chapter 16 of Class 6 Science:
Constructing a timetable or schedule is the first step.
This timetable should contain all the subjects including Science.
Use the NCERT book for reading Chapter 16 of Class 6 Science.
Work out on the questions given in the NCERT book.
Make notes for the chapter so that you can learn the keywords easily.
You will get revision notes of Chapter 16 of Class 6 Science on the Vedantu website and app.
2. Write some merits and demerits of plastics.
Following are some merits of plastics:
Jars, containers, boxes, etc made of plastic are used by people for keeping edible materials and they do not get spoiled.
Plastic products can be easily carried anywhere.
These plastic materials are cheap, good looking and durable.
Disadvantages of plastics:
The decomposition of plastic is difficult in soil and this causes a decrease in the fertility of the soil.
People throw plastic bags on roads and along with garbage which are consumed by animals. Due to this, these animals suffer from diseases.
3. Discuss the types of wastes based on the source of garbage.
Based on the source of garbage, there are 5 types of garbage:
Domestic Wastes – In this type of waste, you will find household waste like waste food, vegetables and fruits peels, tins and cans, etc.
Industrial Wastes –These types of wastes are generated by the industries. These wastes are toxic and harmful to human health. For example, dust, smoke, ash, plastic, etc.
Agricultural Wastes – The agricultural wastes include weeds, toxic insecticides and pesticides, stems, husks, etc.
Commercial Wastes – This type of waste consists of wastes produced by commercial places like hotels, shops, etc.
Biomedical Wastes –Wastes produced by clinics, hospitals and medical centres are considered as biomedical wastes.
To know more and revise this chapter, students can download the revision notes free of cost from the Vedantu website.
4. Describe the following terms.
The procedure in which biodegradable wastes like kitchen or organic wastes are converted into nutrient-rich materials so that they can be used as manure is known as composting.
This method is done by making a pit in the ground and settling waste into it.
Microorganisms decompose the wastes to turn them into manure.
In this method, red worms are used for decomposing the waste. These red worms are put along with the waste.
They excrete the digested materials by feeding on the waste. These digested substances are rich in nutrients.
5. Note some differences between biodegradable and non-biodegradable wastes.
(a) Biodegradable Wastes –
The wastes which can be turned into non-toxic materials by the decomposition of bacteria are termed biodegradable wastes.
They can be changed over a long period.
Do not cause harm to the environment.
Example : cattle dung, spoilt food, fruit peels, etc.
(b) Non-biodegradable Wastes –
This type of waste cannot be broken into simpler matter by microorganisms.
Over a long period, these wastes remain unaffected.
These wastes cause pollution in the environment.
Example – plastic, DDT, glass, tins, cans, etc.