National Science Olympiad Forum By SOF Olympiad Trainer - Page 364
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Taksh from St John High School, Mumbai
Subject :NSO    Class : Class 7

Ans 1:

Taksh from St John High School, Mumbai
Class : Class 8
Anything

Ans 2:

Taksh from St John High School, Mumbai
Class : Class 8

Ans 3:

AISHA from K.V.No.-1,A.F.S.,SEC.-14, GURUGRAM
Class : Class 10
C

Ans 4:

Taksh from St John High School, Mumbai
Class : Class 8

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Taksh from St John High School, Mumbai
Subject :NSO    Class : Class 7

Kriti performed the following two experiments.
I. She held a hack-saw blade with a pair of tongs and then kept the tip of the free end on the flame. She observed that the blade became red hot.
II. She dropped a shaving blade into the blue coloured copper sulphate solution. The colour of the solution changed to green.
Identify the types of changes occurring in both the experiments.

A I - Physical change, II - Chemical change
B I - Chemical change, II - Physical change
C Both I and II - Physical changes
D Both I and II - Chemical changes


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S KESHAV KUMAR from ST MARYS ICSE SCHOOL, NAVIMUMBAI
Subject :NSO    Class : Class 5

Ans 1:

bh from Asdfgh, Hyderabad
Class : Class 9
D

Ans 2:

Avani from NPS International singapore, singapore
Class : Class 6
Troposphere is the correct answer

Ans 3:

Avani from NPS International singapore, singapore
Class : Class 6

Ans 4:

Bitan Chakraborty from Adamas international school, Kolkata
Class : Class 8
troposphere

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SWAPAN KUMAR GHOSH from navy children school, karwar
Subject :NSO    Class : Class 6

Ans 1:

Harshvi Udani from Sawatridevi Agrawal school, Mumbai
Class : Class 6

Ans 2:

Pranav Kartik from DPS sushant lok , Gurgaon
Class : Class 3

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SWAPAN KUMAR GHOSH from navy children school, karwar
Subject :NSO    Class : Class 6

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SWAPAN KUMAR GHOSH from navy children school, karwar
Subject :NSO    Class : Class 6

Read the given statements and select the correct option.
Statement 1 : Our tongue feels cold when we place some glucose on it.
Statement 2 : Dissolution of glucose is an exothermic process.

A Both statements 1 and 2 are true and statement 2 is the correct explanation of statement 1.
B Both statements 1 and 2 are true but statement 2 is not the correct explanation of statement 1.
C Statement 1 is true but statement 2 is false.
D Both statements 1 and 2 are false.

Ans 1:

Amrik Pal from Kendriya Vidyalaya DRDO, Bangalore
Class : Class 6
it is B

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Parthpratim Das from DPS School, Udaipur
Subject :NSO    Class : Class 9

Ans 1:

Aarushi Thapa from apeejay school noida, NOIDA
Class : Class 9

Ans 2:

Parthpratim Das from DPS School, Udaipur
Class : Class 7
pls give answer

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Shinde Atharv from Sharda English School, Kaij
Subject :NSO    Class : Class 6

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Shinde Atharv from Sharda English School, Kaij
Subject :NSO    Class : Class 6

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Ainesh das from Chrysalis, Bangalore
Subject :NSO    Class : Class 4

Ans 1:

Overtaker from Blore, Blore
Class : Class 4
C

Ans 2:

Bushra aslam from uttam, Ghaziabad
Class : Class 8
Correct

Ans 3:

Dishita Santosh Walujkar from Nutan English School, Kurduwadi
Class : Class 7
C

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