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Gauri Singh from St Johns School Marhauli, Varanasi
Subject :NSO    Class : Class 5

Ans 1:

AREEN from BOLTON, HYDERABAD
Class : Class 6
Ans is A because lungs send oxygen-rich blood to the heart and this oxygen-rich blood is sended to all body parts and the carbondioxide-rich blood goes back to the heart from the body this carbondioxide-rich blood is sended to the lungs.

Ans 2:

Gauri Singh from St Johns School Marhauli, Varanasi
Class : Class 8

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Navneet Mathur from St Mary Convent Senior Secondary , Ujjain
Subject :NSO    Class : Class 7

Read the given passage.
In a flower, produces pollen grains. Pollen grains are deposited on of pistil. carries male gametes to the ovule. Fusion of male and female gametes is called. After fertilisation, develops into fruit and develops into seed. Select the correct option which fills the blanks with atleast three correct answers.

A2-Style, 4-Fertilisation, 5-Ovary
B1-Anther, 3-Pollen tube, 6-Ovule
C2-Stigma, 3-Filament, 5-Ovary
D1-Anther, 2-Stigma, 4-Pollination


will anyone tell me where is the 4th blank? and what is wrong in option a

Ans 1:

Medha Bhutani from Christ Academy, Bengaluru
Class : Class 9
4 th blank will be filled with fertilisation correct ans is b Pollen grains are deposited on stigma and not style

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Arkoprava Dey from Techno India Group Public School, Coochbehar, Coochbehar
Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is D.

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ANSHUMAN RAJ from ST.THERESA'S CONVENT SR.SEC.SCHOOL KARNAL, KARNAL,HARYANA
Subject :NSO    Class : Class 3

Read the given statements and select the correct option regarding the subject of discussion.
Sanjay : Railways involve high construction and maintenance cost.
Kunal : A few states of India lack a good railway network.
Amit : The construction of railways is very difficult and costly in flat land whereas it can easily be done in mountainous region.
Rajeev : Areas with less industrial development cannot compensate the cost of construction of railways , hence have less railway network.

A Only Sanjay and Amit are correct.
B Amit and Rajeev gave the reasons of Kunal’s statement.
C Sanjay and Rajeev gave the reasons of Kunal’s statement.
D Amit gave the explanation of Sanjay’s statement.


I like this question 👍

Ans 1:

Ayush Anand Sharma from GEMS international school , Gurgaon
Class : Class 8

Ans 2:

Aditri Dixit from TCIS, Bangalore
Class : Class 3

Ans 3:

Aneesh Balaji from BVBARR school, Hyderabad
Class : Class 4
c is the ans

Ans 4:

MAYANK from Jain Public School, REWARI
Class : Class 5
C

Ans 5:

Bushra aslam from uttam, Ghaziabad
Class : Class 4

Ans 6:

ANWESHA THAKUR from DPS SECTOR 132 NOIDA, NOIDA
Class : Class 4

Ans 7:

Ayush Anand Sharma from GEMS international school , Gurgaon
Class : Class 8
kunal is wrong

Ans 8:

Aditri Dixit from TCIS, Bangalore
Class : Class 3
NA

Ans 9:

Aditri Dixit from TCIS, Bangalore
Class : Class 3

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arnav reddy from oakridge international school, hyderabad
Subject :NSO    Class : Class 3

Ans 1:

Samik Praveen from Euro School Airoli, Mumbai
Class : Class 3
All of these

Ans 2:

Mahima g pillai from Arya central school, Trivandrum
Class : Class 3
D

Ans 3:

MAYANK from Jain Public School, REWARI
Class : Class 5
A

Ans 4:

Havi Jain from GEMS modern academy, Gurgaon
Class : Class 3
all of these option(D)

Ans 5:

MAYANK from Jain Public School, REWARI
Class : Class 5
D

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Vivek Gulavani from Innisfree House School, Bengaluru
Subject :NSO    Class : Class 7

Read the given data and select the correct option for the following questions.
Raman carried out an experiment to find out how fast water can pass through four different types of soil. He put each type of soil in four pots with equal sized holes at the base and placed separate dishes at their bottom to collect water. He poured water in them one by one, and used a stopwatch to record the time taken for water to reach the level he had marked same in each dish. His recording is given in the table as shown below.

What factors should Raman keep the same to ensure a fair test?
(i) The amount of soil
(ii) The size of the pot
(iii) The shape of the dish
(iv) The amount of water

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


How can it be a fair test if the amount of water varies

Ans 1:

Palash sachin patel from Kips, Patan
Class : Class 7
d is correct answer

Ans 2:

Kamal Manchenella from Delhi Public School, Hyderabad
Class : Class 7
I feel that it is D

Ans 3:

Agastya Tripathi from dps gurgaon, Gurgaon
Class : Class 7
Water is also correct

Ans 4:

Mehaan Bhatt from Pawar Public School , Mumbai
Class : Class 6

Ans 5:

Aditya Sai Vemparala from Amanora school, Pune
Class : Class 8
The amount of water also matters right

Ans 6:

Shubham Ashish Kulkarni from APEEJAY PITAMPURA, DELHI
Class : Class 8
shape of dish also should be included. Amount of water poured doesnt matter as long as you are collecting equal volume in all dishes. Hence similar dishes is important.

Ans 7:

aditya ranjan from gyan niketan , patna
Class : Class 7
i think amount of water also nedd

Ans 8:

shreya from GIIS, KualaLumpur
Class : Class 5

Ans 9:

Dhairya Vinayak from Loyola High School, Patna
Class : Class 8

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Aswath Krishna from DPS EAST, Bengaluru
Subject :NSO    Class : Class 6

A potter shapes pots out of clay (Process 1). He then bakes the pots in an oven (Process 2). Which of the following statements is correct?

A Process 1 is a reversible, physical change while process 2 is an irreversible, physical change.
B Process 1 is an irreversible, physical change while process 2 is an irreversible, chemical change.
C Process 1 is a reversible, physical change while process 2 is an irreversible, chemical change.
D None of these.


Is it A or C?

Ans 1:

Sohan Choudhury from Delhi Public School Electronic City Bengaluru, Bengaluru
Class : Class 6
on heating, the clay pot doesn't turn into stone,right?it doesn't change composition once heated , it is still clay ! answer is "A"

Ans 2:

Aarush Goyal from D.A.V Pblic school, Sector 14, Faridabad
Class : Class 6
A is the correct answer

Ans 3:

VIJAYA SREYAS B from NARAYANA OLYMPIAD SCHOOL KUKATPALLY, HYDERABAD
Class : Class 6
C because we can get clay back from a wet pot by smashing it,but once it heats up, it dries the clay and makes it stone hard.

Ans 4:

ridhima from mdps, faridabad
Class : Class 6

Ans 5:

Vidula Malkar from DPYA High school, Mumbai
Class : Class 6
a is the correct answer because chemical composition dose not change

Ans 6:

Tanishtha from DPS, Greater Noida
Class : Class 7
c is the correct answer

Ans 7:

Aadvik saini from Mvn sector 17, Faridabad
Class : Class 6
answer is a

Ans 8:

Anika Saha from New Town School, KOLKATA
Class : Class 6
The answer is A.

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Vivek Gulavani from Innisfree House School, Bengaluru
Subject :NSO    Class : Class 7

A student took an iron rod and a wooden rod and wrapped each of them in a piece of paper. These were then heated as shown. It was found that the paper around the iron rod does not burn whereas the one around the wooden rod catches fire. It is because


A Candle, in case of iron rod, is nearer to the paper
B Wood being a bad conductor of heat, takes away all the heat
C Iron being a good conductor of heat, conducts away the heat given to the paper
D Paper, in first case, is thicker.


could someone please explain the answer

Ans 1:

Medha Bhutani from Christ Academy, Bengaluru
Class : Class 9
ans is option C

Ans 2:

Praveen Rai from Lotus Valley International School, Noida
Class : Class 7

Ans 3:

Harshdeep roy from Bhavans School , Nagpur
Class : Class 7
answer is option c

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Pradhyumna from J S S Public School, Bengaluru
Subject :NSO    Class : Class 4

Ans 1:

Sandipta Bhattacharjee from Sri Ram Narayan Singh Memorial High School, Kolkata
Class : Class 5
Not kerwa its kewra. It is an extract that is distilled from the flower of the Pandanus plant. Kewra water is very similar to rosewater. It is used to flavour South Asian cuisine.

Ans 2:

Sandipta Bhattacharjee from Sri Ram Narayan Singh Memorial High School, Kolkata
Class : Class 5
jk kj;

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SANAJY GOPAL BHARTARIYA from ST. FIDELIS COLLEGE, LUCKNOW
Subject :NSO    Class : Class 6

Ans 1:

Aarush Goyal from D.A.V Pblic school, Sector 14, Faridabad
Class : Class 6
it will be maximum near the ground

Ans 2:

VIJAYA SREYAS B from NARAYANA OLYMPIAD SCHOOL KUKATPALLY, HYDERABAD
Class : Class 6
As it goes up,kinetic energy decreases due to gravity while potential energy increases with height. As it comes down, kinetic energy increases due to gravity while potential energy decreases.

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