JACB - 7 - Science :: Wastewater: Cause and Disposal

Go To: JACB-Sci-Grade 7

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Course content
Textbook
Teaching learning resources

Course Content / Subtopic list:

Waste water
World water day
Treatment of water
Contaminants
Sources of sewages , Types of sewages
Management of wastewater - primary treatment , secondary treatment , tertiary treatment
Sewerage plant
Primary sludge- sedimentation tank , aeration tank
Secondary sludge , management of pure water in houses , management of household waste , worm processing toilets

Expected Learning Outcome:

SWBAT-

Define waste water
Explain the process of treatment of water
Identify sources of sewages
Differentiate between primary , secondary and tertiary treatment
Explain the ways for the management of household wastes

Hindi Medium

Hindi medium textbook

Lesson Plan

[Contributor - Sasmita Kant Maurya]

Dear Volunteer,

Please find below the detailed lesson plan and PPT for this chapter in the language mentioned against the respective link. While the lesson plan will give an overall flow of the lesson, the PPT will include lesson flow as well as the presentations for the class.

https://drive.google.com/open?id=1SdmwuwEoRu3nf70QOuFV5WwRk87jUHLG (Lesson Plan - English)

https://drive.google.com/open?id=1Q8_0LxRq2fzWMiuhtbp3MTx5DfnGg33o (PPT - Hindi)

You may use the content as it is or download and modify them to suit the students requirements.

If you feel any major modifications or additions are carried out by you in the form of adding any new activity, presentations, videos etc. we request you to send the modified version to submitcontent@evidyloka.org for enabling upload the modified version.

The worksheets of the lesson can be accessed from the worksheet tab.

Kindly rate the lesson plan and share your suggestions and comments on the lesson plan in the comments box below. Your valuble suggestions and comments will help us to improve the content.

Videos

[Author - Kripa S]

https://www.youtube.com/watch?v=93BqLewm3bA&t=40s (water pollution -English)

[Contributor - Sasmita Kant Maurya]

Lesson Plan version 1.1 videos

https://www.youtube.com/watch?v=-xuNS-s8LlA (Sewage treatment)

https://www.youtube.com/watch?v=7KtYarN4a5M (how septic tank works)

Images

[Author - Kripa S]

http://d2ouvy59p0dg6k.cloudfront.net/img/wasting_water_large_350396.jpg (wastage of water example 1)

https://im.rediff.com/getahead/2005/apr/04water.jpg (wastage of water example 2)

Activities

[Author - Kripa S]

1.Divide yourself into groups to perform the activity.

a) Fill a large glass jar 3/4 full of water. Add some dirty organic matter such as grass pieces or orange peels, a small amount of detergent, and a few drops of an ink or any colour.

b) Cap the jar, shake it well and let the mixture stand in the sun for two days.

c) After two days, shake the mixture. How does it smell?

d) Use a filter paper/ Cotton cloth to filter this mixture. What remains? What is the colour?