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Questions of Section B Part 1

Check Your Understanding




1. In an investigation, different amount of salt is used to preserve some fish. The period of time the fish can last is observed and recorded into Table 1.

Amount of salt ( spoons)
1
2
3
4
Period of time the fish last ( day )

2

6

12

18
Table 1


1.  What is the aim of the above investigation?

Ans :



2. State the thing that need to be
i) Kept the same:
Ans :



ii) Changed:
Ans :   
 
                                              

3. Why salt can be used to preserve fish?
Ans :



4. What is the trend in the change in the period of time the fish last?
Ans :

                                             

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