CBSE Class 7 Science Waste water Set B

Read and download free pdf of CBSE Class 7 Science Waste water Set B. Download printable Science Class 7 Worksheets in pdf format, CBSE Class 7 Science Chapter 18 Wastewater Story Worksheet has been prepared as per the latest syllabus and exam pattern issued by CBSE, NCERT and KVS. Also download free pdf Science Class 7 Assignments and practice them daily to get better marks in tests and exams for Class 7. Free chapter wise worksheets with answers have been designed by Class 7 teachers as per latest examination pattern

Chapter 18 Wastewater Story Science Worksheet for Class 7

Class 7 Science students should refer to the following printable worksheet in Pdf in Class 7. This test paper with questions and solutions for Class 7 Science will be very useful for tests and exams and help you to score better marks

Class 7 Science Chapter 18 Wastewater Story Worksheet Pdf

TOPIC: WASTE WATER STORY


Q.1.What is sewage?
 
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Q.2. Name some contaminants found in sewage.
 
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Q.3.Give reasons.
 
a) Oil and fats such as cooking oils, solid food remains, plastic bags, toys etc. should never be thrown in a drain.
 
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b) Chemicals such as paints, medicines, insecticides should not be thrown into drains.
 
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c) During the treatment of waste water, air is pumped into it.
 
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d) Untreated human excreta is a health hazard.
 
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Q.4. List the four steps involved in waste water treatment.
 
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Q.5.What do you understand by the term sewerage?
 
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Q.6.What is the use of manholes provided in the sewerage?
 
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Q.7.What is the use of skimmer in a waste-water treatment plant?
 
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Q.8. How is sludge decomposed in a waste-water treatment plant?
 
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Q.9. Name any two chemicals used to disinfect water.
 
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Q.10. Name any four onsite sewage disposal systems suitable for rural areas.
 
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Please click on below link to download CBSE Class 7 Science Waste water Set B

Chapter 07 Weather, Climate and Adaptations of Animals to Climate
CBSE Class 7 Science Weather Climate and Adaptions of Animals to Climate Worksheet Set A
Chapter 16 Water: A Precious Resource
CBSE Class 7 Science Water A Precious Resource Worksheet
Revision Worksheets for Class 7 Science
CBSE Class 7 Science Revision Worksheet

Chapter 18 Wastewater Story CBSE Class 7 Science Worksheet

The above practice worksheet for Chapter 18 Wastewater Story has been designed as per the current syllabus for Class 7 Science released by CBSE. Students studying in Class 7 can easily download in Pdf format and practice the questions and answers given in the above practice worksheet for Class 7 Science on a daily basis. All the latest practice worksheets with solutions have been developed for Science by referring to the most important and regularly asked topics that the students should learn and practice to get better scores in their examinations. Studiestoday is the best portal for Printable Worksheets for Class 7 Science students to get all the latest study material free of cost. Teachers of studiestoday have referred to the NCERT book for Class 7 Science to develop the Science Class 7 worksheet. After solving the questions given in the practice sheet which have been developed as per the latest course books also refer to the NCERT solutions for Class 7 Science designed by our teachers. After solving these you should also refer to Class 7 Science MCQ Test for the same chapter. We have also provided a lot of other Worksheets for Class 7 Science which you can use to further make yourself better in Science.

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