Difference between revisions of "NCERT - 8 - Science :: Microorganisms: Friend and Foe"
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Revision as of 22:06, 5 September 2017
Go To: NCERT-Science-Grade 8
- Lesson Plan
- Textbook
- Videos
- Images
- Activities
- Additional Aids
- Transliteration
- Worksheets
- Assessments
[Contributor - Anu Nived]
Objective: To teach the students about microoraganisms and how they are helpful and harmful to us
Subtopics to be covered:
- Food preservation
- Nitrogen fixation and nitrogen cycle
Learning Outcome:
- Students know about various useful and harmful microbes
- They know how viruses are different from other microbes
- They know the difference between anti bodies and anti biotics
[Contributor - Kripa S]
http://epathshala.nic.in/wp-content/doc/book/flipbook/ClassVIIIFlipbook/0855-Vigyan/Chapter-2/index.html (NCERT Hindi Medium)
http://epathshala.nic.in/wp-content/doc/book/flipbook/ClassVIIIFlipbook/0854-Science/Chapter-2/index.html (NCERT English Medium)
https://drive.google.com/open?id=0BzNF2YyqQxJ-bTVESG9HLUFOYTg (JEPC Board) (Hindi Medium)
[Contributor - Kripa S, Neelam Singh]
https://www.youtube.com/watch?v=bY5PLLHxpbs (Good and Bad microbes)
https://www.youtube.com/watch?v=ZaFVfHftzpI (Hindi - Nitrogen Fixation)
[Contributor - Anu Nived]
http://p6cdn4static.sharpschool.com/UserFiles/Servers/Server_71522/Image/Migration/dsc_0129.jpg (Food preservation - drying)
https://mypantryshelf.files.wordpress.com/2011/02/036.jpg (Salting)
http://www.tasteofsouthern.com/wp-content/uploads/2012/05/14_Freezing-Strawberries_sugar-to-coat.jpg (adding sugar)
http://www.practicalprimitive.com/images/salsa.jpg (adding oil and vinegar)
https://www.ag.ndsu.edu/cpr/images/07-02-15/plsc-kandel-1-soybean-nodulation.png (nitrogen fixation)
[Contributor - Arshea Bimal]
1. Take two pots and fill each pot half with soil. Mark them A and B. Put plant waste in pot A and things like polythene bags, empty glass bottles and broken plastic toys in pot B. Put the pots aside. Observe them after 3-4 weeks.
2. https://www.youtube.com/watch?v=4KG645qrpw8 (inflatable lungs)
[Contributor - Fathima Nazar]
| Term | Transliterated Term | Translated Term | |
| Algae | अलगे | शैवाल | |
| Antibiotics | आंटीबायोटिक्स | प्रतिजैविक | |
| Antibodies | आंटीबोडीज़ | प्रतिरक्षी | |
| Bacteria | बैक्टीरिया | जीवाणु | |
| Carrier | कारियर | वाहक | |
| Communicable Diseases | कम्युनिकेबल डिसीसेस | संक्रामक रोग | |
| Fermentation | फेरमेंटशन | किण्वन | |
| Fungi | फंजई | कवक | |
| Lactobacillus | लैक्टोबैसिलस | णु जो कार्बोहाइड्रेट के किण्वन से लैक्टिक एसिड पैदा करता है। | |
| Microorganisms | माइक्रो ऑर्गैनिसम | सूक्ष्मजीव | |
| Nitrogen Cycle | नइट्रजन साइकिल | नाइट्रोजन चक्र | |
| Nitrogen Fixation | नइट्रजन फिक्सेशन | नाइट्रोजन स्थिरीकरण | |
| Pasteurization | पॉस्चराइज़ेशन | पास्चरीकरण | |
| Pathogen | पाथजन | रोगज़नक़ | |
| Preservation | प्रिज़र्वेशन | परिरक्षण | |
| Protozoa | प्रोटोज़ोआ | एक कण जीव, एककोषीय प्रजीव | |
| Rhizobium | राइज़ोबियम | एक नाइट्रोजन फिक्सिंग जीवाणु | |
| Vaccine | वाक्सिन | टीका | |
| Virus | वायरस | विषाणु | |
| Yeast | यीस्ट | ख़मीर |
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