SCIENCE GR VIII 24th APRIL CLASS DETAIL ;HOME WORK ; RESOURCES USED AND ADDITIONAL VIDEO .

Virtual Online Class
24th April'20
Subject: SCIENCE
Ch -2 MICROORGANISM

Topic: Friendly Microbes (Useful Microorganism)

  • To keep environment clean (today discussed)
  • In food industry(discussed today)
  • In medicines
  • Other uses 

NOTE:
 Reference material used 
According to SSD  Refer PPT and video attached.above (Between us portal). 

Additional video for better understanding :



HOME WORK


1. Give reason:

a. Microorganisms are indispensable to life on earth.
b. Pseudomonas bacteria are also called oil eating bacteria.
c. Breads,cakes and idlis are soft and fluffy.
d.Mushrooms are good for health.

2.Name out the use of microbes to keep the environment clean.

3. Name out  the use of microbes in the field of food industry.

4.  a.Explain how milk turns out into curd ?
     b. Name out the mushrooms that are commonly consumed as food 

5.fill in the blanks:
a.___________are rich in proteins and Vitamin B.
b.___________are used as cattle feed.
c.________gives us agar-agar.
d._____________are a rich source of iodine and Potassium.
e.__________are rich in protein and vitamins and are used as human food supplements.
f .Bacteria such as ___________ are used to make vinegar and alcohol.


6. Define Fermentation and give example.












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