SCIENCE CLASS 29th April'20 CLASS DETAIL; HOME WORK ;DOCUMENT ;WORKBOOK AND TEXTBOOK ; TEXTUAL ANSWER KEY ; MODEL INFO; PPT AND ADDITIONAL LINK FOR VIDEO AND PPT

VIRTUAL ONLINE CLASS
30th April '20
Subject : Science
Ch - MICROORGANISM
Topic:
(Discussed today)

  • Food spoilage
  • Food poisoning
  • Food Preservation 
  • Nitrogen cycle 
NOTE:

PPT
According to SSD (on between us portal.) 

Additional PPT AND VIDEO

 CHAPTER PPT


NOTE:
Make out a card board 3D structure or Model of any one of topic given below

A.BACTERIOPHAGE

B.FUNGUS

Make small video and  send me by mail

SOLVE WORKBOOK (WORKSHEET)

HOME WORK :

1 Short note on food spoilage.
[Note  ways to write answer of  Q.1 Based on 
a)what it means 
b.)How it occur
c) Prevented or reduce ]

2. a.)What is food preservation?
    b.) how food preservation is helpful?
    
3.State and Explain method of Food preservation.

4.Bacterium Salmonella is a most cause of food poisoning.Why?

5.. Fill in the blanks:

1. _________is a well -known bacterium in the food service industry as it is the most common cause of food poisoning.

2._________is used in some case to kill germs present in the food before packaging it .

3.Milk that we get in packaged bags undergoes a process called as__________which makes it germ free.

4.In Chemical preservatives, _____________And __________are common preservayives used in squashes,sherbets and ketchup's.

5.___________kills the germs and the _______(lacks of air )restricts the growth of microorganisms.

and 

Textual Exercise 
Q.5 ,6, 7 , 8 , 10 and Q.11.

also
WORKBOOK (LINK given above with answer scheme)













ANSWER KEY 


  •   TEXTUAL EXERCISE




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