National Science Olympiad Forum By SOF Olympiad Trainer

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Subject :NSO    Class : Class 1

Ans 1:

Class : Class 3
Ans: C

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 5

Ans 2:

Class : Class 5
Answer should be D because equator is not slanting but if we mix equator and axis of the earth it will be criss crossed.

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Subject :NSO    Class : Class 4

Some children wanted to find out how overcrowding can affect plant growth. They took four pairs of plants, A, B, C and D, as shown here and kept them at the same location. Each pot is given the same amount of water each day. Which pair of plants will give the correct result of their experiment?

A
B
C
D


in option C the amount of soil is the same but in the first pot there are less flowers and in the other pot there are more flowers and they both havegood soil

Ans 1:

Class : Class 8

Ans 2:

Class : Class 5
Answer should be C because good soil means soil having essential nutrients and poor soil means the soil which is not having essential nutrients.In the option C,the checking of soil is by purity.In option D,the soil amount is different.

Ans 3:

Class : Class 4
my C and D are same

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Subject :NSO    Class : Class 4

The given graph is plotted according to the recordings of an experiment to find out the effect of temperature on the rate of photosynthesis in an aquatic plant. Based on the given graph, select the correct option.


A Photosynthesis occurs best at 35°C.
B No photosynthesis takes place at 5°C and 45°C.
C The volume of oxygen collected keeps increasing with increasing temperature.
D Volume of oxygen collected at 15°C is higher than that collected at 40°C temperature.


oxygen is not taken by plants during photosynthesis

Ans 1:

Class : Class 4

Ans 2:

Class : Class 4

Ans 3:

Class : Class 4
the answer can be both a and photosynthesis happen best at 35 degree cand the volume of oxygen collected in 15dc is more than 45dc.

Ans 4:

Class : Class 4
the answer can be a and d

Ans 5:

Class : Class 5
Answer is A because the straight line shows in which temperature photosynthesis occurs best.

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 5
Answer is C because the graph is showing different levels of O2 in the atmosphere and Y has less oxygen in the atmosphere.

Ans 2:

Class : Class 6

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 5
Answer is D because Venus has the high amount of carbon dioxide which traps the heat of the sun.

Ans 2:

Class : Class 4
D

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Subject :NSO    Class : Class 8

Ans 1: (Master Answer)

Class : Class 1
The correct answer is C.

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Subject :NSO    Class : Class 9

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 8

Ans 1: (Master Answer)

Class : Class 1
The correct answer is D.

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