National Science Olympiad Forum By SOF Olympiad Trainer - Page 340
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Aria Routray from V S Vidyalaya , Sunabeda
Subject :NSO    Class : Class 5

Ans 1:

Arin from suncity, gurugram
Class : Class 8
ans b

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Aria Routray from V S Vidyalaya , Sunabeda
Subject :NSO    Class : Class 5

Radha carried out an experiment to find out how fast water can pass through three different types of soil. She set up the experiment as shown below. Using a stop watch, she measured the time taken for 20mL of water to pass through each type of soil.

She recorded the results as shown below:

Identify soils X, Y and Z and select the correct option regarding them.

AY type of soil is usually found in deserts.
BPotters use X type of soil to make pots.
CSoil Z contains nutrients and humus in right proportion which makes it suitable for growth of most plants.
DAll of these


D

Ans 1:

Arin from suncity, gurugram
Class : Class 8
ans d

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R SAI HARSHIL from HILLSIDE SCHOOL, Hyderabad
Subject :NSO    Class : Class 4

Ans 1:

Kriti Bhonsale from Delhi Public School, Bengaluru
Class : Class 5
i think it is ACAN SOMEONE PLS TELL THE CORRECT ANSWER?

Ans 2:

Bushra aslam from uttam, Ghaziabad
Class : Class 8
D is the best answer

Ans 3:

Aayman from DPS NOIDA, Noida
Class : Class 4
This question ****s

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Dhyey Mehta from Pawar Public School, Dombivali
Subject :NSO    Class : Class 7

Refer to the given figure showing three parent species, X, Y and Z (in plot I) and their respective seedlings after dispersal (in plot II).

Select the incorrect statement regarding species X, Y and Z.
(i) X could be pea plant in which fruits burst open forcibly after drying.
(ii) Y could be Xanthium in which seeds are hooked i.e., have spines.
(iii) Z could be Acer in which fruits and seeds have wings or hair like structure.
(iv) X could be coconut, Y could be lotus and Z could be Calotropis.

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


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Syed Mohammad Hussain from ISAM, Muscat
Subject :NSO    Class : Class 5

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nishka Alpesh Lad from U S Ostwal English Academy, Mumbai
Subject :NSO    Class : Class 7

Ans 1:

Nivriti from Euro, Mumbai
Class : Class 7
answer is D

Ans 2:

Siddharth from DPS, Jodhpur
Class : Class 9

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Satyam Pandey from radiant, danapur
Subject :NSO    Class : Class 7

Kunal took few iron turnings and mixed them well with sulphur powder. He could separate the iron turnings with the help of a magnet. He heated the mixture for some time and tried to separate the iron turnings with the magnet but he could not. Why?

A On heating, a chemical change takes place and a new compound is formed.
B On heating, iron becomes non-magnetic hence, it is not attracted by magnet.
C On heating, a physical change takes place hence iron and sulphur gets mixed up.
D On heating, iron evaporates and only sulphur is left behind.


Ans 1:

Vyom from St KABIR , Ahmedabad
Class : Class 5

Ans 2:

Aadvik saini from Mvn sector 17, Faridabad
Class : Class 8
the answer is A

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Manish Saruparia from NPS Singapore, Singapore
Subject :NSO    Class : Class 2

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R SAI HARSHIL from HILLSIDE SCHOOL, Hyderabad
Subject :NSO    Class : Class 4

Ans 1:

Elisha Kannojia from Delhi Public School, Noida
Class : Class 5
The awnser is D

Ans 2:

somesh from Centre point katol road, Nagpur
Class : Class 6
Answer is d because the male person has a sword in his hand

Ans 3:

Rozan nirmali from GIIS, japan
Class : Class 5
How do I know the answer, if I'm a Sri Lankan!

Ans 4:

Hamzah Inamdar from SHARDA ENGLISH SCHOOL KAIJ DIST BEED, KAIJ
Class : Class 4

Ans 5:

somesh from Centre point katol road, Nagpur
Class : Class 6
It is d

Ans 6:

Hamzah Inamdar from SHARDA ENGLISH SCHOOL KAIJ DIST BEED, KAIJ
Class : Class 4
4 answer is C

Ans 7:

Daksh Aich from Sri Kumaran, Bengaluru
Class : Class 4

Ans 8:

Yatindra G from SBOA, Chennai
Class : Class 4
the answer is (A) because they are wearing kurta and the woman is wearing saree.

Ans 9:

Abhyuday Dutta from DPS NOIDA, Noida
Class : Class 4
The correct answer is B). All of you are wrong because you don't know Science. Ha......Ha.....

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Aishwarya S R from Sunshine senior secondary school, Chennai
Subject :NSO    Class : Class 4

Ans 1:

MIERA SHARMA from DPS AGRA, AGRA
Class : Class 6

Ans 2:

MIERA SHARMA from DPS AGRA, AGRA
Class : Class 6
Class :

Ans 3:

MIERA SHARMA from DPS AGRA, AGRA
Class : Class 6

Ans 4:

Kriday from KDAV, Jamnagar
Class : Class 4

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