JACB - 8 - Science :: Micro Organisms

Go To: JACB-Sci-Grade 8

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• Textbook
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Course Content / Subtopic list:

1. Microorganisms
2. Different types of Microorganisms - Bacteria , Fungi , Protozoa and Algae
3. Facts related to Microorganisms
4. Microorganisms and us
5. Microorganisms are our friends
6. Uses of Microorganisms - Commercial uses of microorganisms , medicinal uses of Microorganisms ,Vaccination , Agricultural uses of microorganisms
7. Environment conservation and microorganisms
8. Biotechnology and microorganisms
9. Management of industrial waste , nitrogen fixation
10. microorganisms are our foe
11. microorganisms are the cause of various diseases in animals and plants
12. Tests for various food items
13. Nitrogen cycle

Expected Learning Outcome:

SWBAT-

1. Define microorganisms
2. Compare between various divisions of microorganisms like - Fungi , Protozoa , bacteria and Algae
3. Explain how microorganisms are useful to us
4. Identify various uses of microorganisms like commercial , medicinal , Agricultural and biotechnological . Define nitrogen fixation
5. Explain how microorganisms are our foe
6. Identify various plants and animal diseases caused by different microorganisms

Hindi Medium

Hindi medium textbook

Lesson Plan

[Contributor - Ankita Srivastava]

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=1x9L6SqrnhGfCYz5ohew6FwRhfwqpCJMU (Lesson Plan - English)

'https://drive.google.com/open?id=1pg4Ss8PoPnFrstmLTC3ROfR1Dtmov-ph (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, Neelam Singh]

https://www.youtube.com/watch?v=bY5PLLHxpbs (Good and Bad microbes)

https://www.youtube.com/watch?v=ZaFVfHftzpI (Hindi - Nitrogen Fixation)

[Contributor - Ankita Srivastava]

Lesson plan version 1.1 videos

https://www.youtube.com/watch?v=bY5PLLHxpbs (Introduction to micro organisms - Hindi)

https://www.youtube.com/watch?v=MauFo03Grq4 (Different organisms in water and soil under microscope)

https://www.youtube.com/watch?v=qlcMZTN7J78 (Types of micro organisms - hindi)

https://www.youtube.com/watch?v=9HOk8A-j4Es (industrial use of micro organisms)

https://www.youtube.com/watch?v=PdWhVwiJWaU (Story of pencilin discovery)

https://www.youtube.com/watch?v=8DIpWSjVM18 (Nitrogen cycle)

https://www.youtube.com/watch?v=PQGu5Z-_C-w&index=4&list=PLHOGBLPrsnMpeqmMPmPIm_0CsN1H3Xca4 (Summary of useful micro organisms)

https://www.youtube.com/watch?v=WsZS4RCWpcE (pathogens)

https://www.youtube.com/watch?v=vO51sFre6fg (How diseases are spread)

https://www.youtube.com/watch?v=ee75YGaVtX0 (Communicable diseases)

https://www.youtube.com/watch?v=glc5KyHkPsk (Common diseases - Hindi)

Images

[Author - 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 - Ankita Sirvastava]

Lesson plan version 1.1 images

https://i1.wp.com/agrihunt.com/wp-content/uploads/2015/10/green-algae-organisms.jpeg?ssl=1 (Image of algae)

https://courses.lumenlearning.com/wm-biology2/chapter/cell-structure-and-motility/ (Image of protozoa)

https://thumbs.dreamstime.com/b/poster-shapes-bacteria-white-background-vector-illustration-87997818.jpg (Different shapes of bacteria)

Activities

[Author - 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 - Ankita Srivastava]

Lesson plan version 1.1 activities

1. Collect some moist soil from the field in a beaker and add water to it. After the soil particles have settled down, observe a drop of water from the beaker under a Microscope. What do you see?

OR

Show them the video of soil microorganism as observed under microscope-

https://www.youtube.com/watch?v=VuHznslr8aI

https://www.youtube.com/watch?v=RY-JY-D4v7I

2. Show this video to children of an experiment showing microorganisms in pond water under microscope-

https://www.youtube.com/watch?v=mXqyCNAYrH4

Ask the students to list down the names of any 5 microorganisms found in pond water (as explained in the video).

3. Take 100 grams of maida in a bowl, add one or two spoons of yeast powder, add some water and knead it to make dough. Keep the dough in a warm place. Observe the dough after 3-4 hours. Observe the changes.

4. Take some lukewarm milk in two small bowls. Add a few drops of butter milk or little curd in one of the bowls. In the second bowl do not add anything. Keep the two bowls in a warm place and observe the milk in the bowls after 5 to 6 hours. Observe the changes.

5. Take some curd (use the curd produced in the previous activity) and put one drop on a slide. Cover with the cover slip and observe under microscope. Follow the steps in the given video- https://www.youtube.com/watch?v=KPi0zs8oGbU

6. Take some of water in two separate beakers. Add 5 to 10 spoons of sugar to each beaker, then add 2 to 3 spoons of yeast to one of the bowls only. Close both of the bowls with lids and keep them in a warm place. After 3 to 4 hours remove the lids and smell the contents. Observe the changes.

7. Remove the gram or pea plant from the soil, including the root. Clear the soil from its roots.

Observe the roots. Do you see the bloated structures in its roots?

Additional Aids

[Contributor - Ankita Srivastava]

Lesson plan version 1.1 PPT

https://drive.google.com/open?id=1pg4Ss8PoPnFrstmLTC3ROfR1Dtmov-ph

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