National Science Olympiad Forum By SOF Olympiad Trainer - Page 66

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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 9

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Subject :NSO    Class : Class 9

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Subject :NSO    Class : Class 7

Which of the following statements are correct?
(i) Some animals help us in keeping our environment clean. They consume dead animals and dispose them off. They are called scavengers.
(ii) Quinine, a forest product obtained from the bark of Cinchona tree, is widely used to treat typhoid.
(iii) Van Mahotsava is a festival of cutting down trees.
(iv) World Forest Day is celebrated on 21st March every year.

A (i) and (iv) only
B (ii) and (iii) only
C (i) and (ii) only
D (iii) and (iv) only


Water day is not celebrated in 21 of march

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 10

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Subject :NSO    Class : Class 10

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 8

Match the column I with column II and select the correct option from the codes given below.

Column I Column II
(A) A girl pulling the leash of a running dog (i) Impact force can make stationary object to move by an another moving object
(B) A driver turning the steering wheel of a car (ii) Gravity acts upon an object
(C) When you hit a nail with a hammer (iii) Force can make an object go slower
(D) A ball released from top of a tower (iv) Force can change the direction of a moving object


A (A)-(i), (B)-(ii), (C)-(iii), (D)-(iv)
B (A)-(iii), (B)-(iv), (C)-(i), (D)-(ii)
C (A)-(ii), (B)-(i), (C)-(iv), (D)-(iii)
D (A)-(iv), (B)-(iii), (C)-(ii), (D)-(i)


testing

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Subject :NSO    Class : Class 6

Ms Naina, a science teacher divided the class into four groups and each group was given different mixtures :
Group I : Sand and iron filings
Group II : Oil and water
Group III : Salt and sand
Group IV : Wheat and husk
Which of the following methods should each group use to separate the components of mixtures given to them?

Group I Group II Group III Group IV
A Magnetic
separation
Seprating
funnel
Filtration
followed by
evaporation
Winnowing
B Sieving Filtration Winnowing Sieving
C Winnowing Decantation Sieving Filtration
D Magnetic
separation
Filtration Sieving Winnowing


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