National Science Olympiad Forum By SOF Olympiad Trainer

kpks14 from RIMT World School, Chandigarh

Subject :NSO Class : Class 5

Ravi set up an experiment as shown below.

Which of the following holds true regarding set ups P and Q?

AIn set up P, the solution inside Visking tubing will become blue black at step II as all the starch is converted to simple sugars.
BIn set up Q, the solution inside Visking tubing will become blue black at step II as starch is not digested at all.
CIn set up P, the solution inside Visking tubing will become blue black at step II as starch is not digested by boiled amylase.
DIn set up Q, the solution inside Visking tubing will become blue black at step II as all the starch is converted to simple sugars by amylase.

c

View All Answers (9)

Ans 1:

Sahishnu Jadhav from SSRVM, PUNE

Class : Class 8

Ans 2:

samanvay sinha from School of India, Bangalore, bengaluru

Class : Class 5

C not D

Ans 3:

Sai Anshuman from De Paul , Berhampur

Class : Class 6

Ans 4:

Bandana from ,

Class : Class 5

Ans 5:

Shreyasi Padihary from The Cambridge International School , Bangalore

Class : Class 7

Ans 6:

Prisha Shah from Euroschool Airoli, Mumbai

Class : Class 6

Ans 7:

SHASHWAT PANDEY from D A V PUUBLIC SCHOOL, NEW PANVEL

Class : Class 5

Ans 8:

Sai Anshuman from De Paul , Berhampur

Class : Class 6

Ans 9:

Sai Anshuman from De Paul , Berhampur

Class : Class 6

Question was very nice.

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Pradhyumna from J S S Public School, Bengaluru

Subject :NSO Class : Class 4

Rati placed 3 gm each of food W, X, Y and Z in digestive juices E and F for 3 hours. After 3 hours, she recorded the amount of undigested food left in each digestive juice and plotted the graphs as shown below.

Based on the information deduced from the given graphs :
(i) Which of these foods W, X, Y and Z is rich in dietary fibres?
(ii) If digestive juice E is from saliva then which component in the given foods W, X, Y and Z is being digested?

A(i) - Z, (ii) - Starch
B(i) - W, (ii) - Starch
C(i) - Y, (ii) - Fats
D(i) - W, (ii) - Fats

View All Answers (3)

Ans 1:

Satvik Agrawal from Delhi Public School, bhopal

Class : Class 5

howww

Ans 2: (Master Answer)

Admin from revisewise, Noida

Class : Class 1

The correct answer is B.

Ans 3:

Dishita Santosh Walujkar from Nutan English School, Kurduwadi

Class : Class 7

yes answer is b

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Pradhyumna from J S S Public School, Bengaluru

Subject :NSO Class : Class 4

Refer to the given food web. If all the F organisms are killed, which one of the following will happen?

AE would have to find new sources of food.
BZ would have more competitors for food.
CE would decrease in number.
DZ would eat more of E and G.

View All Answers (3)

Ans 1:

Dishita Santosh Walujkar from Nutan English School, Kurduwadi

Class : Class 7

yes,d

Ans 2: (Master Answer)

Admin from revisewise, Noida

Class : Class 1

The correct answer is D.

Ans 3:

vivaan sethi from GD goenka public school, Delhi

Class : Class 4

D

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priyanshi gupta from opg world school , delhi

Subject :NSO Class : Class 4

Rohan flicked the same coin with equal force on three different surfaces X, Y and Z. The distance travelled by the coin on different surfaces in one stroke is tabulated as shown.

Now, select the correct option regarding it.

A X could be glass and Z could be cardboard.
B Y could be cardboard and Z could be polished plane mirror surface.
C X could be laminated plastic sheet and Y could be sandpaper.
D X could be marble floor and Z could be jute mat.

View All Answers (4)

Ans 1:

Ibrahim Aslam from uttam, Ghaziabad

Class : Class 5

B is correct answer!!!ð

Ans 2:

Ashwak from Cambridge, Jalandhar

Class : Class 9

B is the correct answer

Ans 3: (Master Answer)

Admin from revisewise, Noida

Class : Class 1

The correct answer is B.

Ans 4:

Sanaya Singh from Hiranandani Foundation, Mumbai

Class : Class 2

its b :|

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MRUDUL MAYANK MOHANTY from Loyola school , Bhubaneswar

Subject :NSO Class : Class 8

Liquids and gaseous fuels have more advantages over solid fuels. Some of the advantages are
(i) Calorific value of liquid and gaseous fuels is higher than the solid fuels.
(ii) Liquids and gaseous fuels have higher ignition temperatures than the solid fuels.
(iii) Liquids and gaseous fuels are easier to store since solid fuels occupy lot of space.
(iv) Liquids and gaseous fuels burn completely, leaving no residue.
The correct advantages are

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

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Ans 1:

Aadvik saini from Mvn sector 17, Faridabad

Class : Class 8

C is the correct option , B is the wrong one

Ans 2:

Kriday from KDAV, Jamnagar

Class : Class 4

in the summary,it is already given that the first option is correct,still it dosent show so in the above question

Ans 3:

tamojit das from techno India Group Public School , Chinsura

Class : Class 8

The information of study materials of this chapter from this site is wrong.Please rectify the data of study material.

Ans 4:

Jitendra Kumar Pareek from Maheshwari public school , Jaipur

Class : Class 8

C

Ans 5:

Pranav Nayal from Birla Vidya Niketan, New Delhi

Class : Class 9

There is no fuel till now which can't burn without leaving any harmful residue.Thus , option A should be the answer

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malavika suresh from Ryan International school , bangalore

Subject :NSO Class : Class 3

Refer to the given figure of human digestive system.

In which of the labelled parts no digestion of food takes place?

A P and S only
B Q and R only
C P only
D S only

View All Answers (5)

Ans 1: (Master Answer)

Admin from revisewise, Noida

Class : Class 1

The correct answer is D.

Ans 2:

subhang sarkar from Aditya Academy, Kolkata

Class : Class 3

anwser will be C

Ans 3:

Daksha Neill from Somerville school, Delhi

Class : Class 7

ignore the prior comment....

Ans 4:

Daksha Neill from Somerville school, Delhi

Class : Class 7

Please explain why D.....

Ans 5:

Ashwak from Cambridge, Jalandhar

Class : Class 9

C

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Dishen dharmenra patel from Anand niketan to the satellite , Ahmedabad

Subject :NSO Class : Class 3

Which one of the following questions could all these pupils answer?

(A) Is the orchid purple or blue?

(B) Is the watch ticking or not?

(C) Is the coffee cold or hot?

(D) Is the soap scented or not?

View All Answers (1)

Ans 1: (Master Answer)

Admin from revisewise, Noida

Class : Class 1

The correct answer is C.

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Alok Roy Choudhury from ,

Subject :NSO Class : Class 8

Three different positions of a dice are shown below. Which number is opposite to number 1 ?

(a) 3
(b) 2
(c) 6
(d) 5

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Ans 1:

Harshit from Army Public School, Lucknow

Class : Class 9

Hi friend the ans is (D) 5. HOPE IT HELPS!!!!

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VIJAYA SREYAS B from NARAYANA OLYMPIAD SCHOOL KUKATPALLY, HYDERABAD

Subject :NSO Class : Class 6

What is the universe made of?

View All Answers (3)

Ans 1:

JIVESH KUMAR from Cochin refineries school , Kochi

Class : Class 6

universe is made of many galaxies .

Ans 2:

Sarim raza from St Xavier, Hzaribagh Jharkhand

Class : Class 6

Universe is huge vast open space.. It contains galaxies, solar systems and celestial bodies etc.. No, one can say how universe begin .

Ans 3:

JIVESH KUMAR from Cochin refineries school , Kochi

Class : Class 6

universe is made of many galaxies .

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Pradhyumna from J S S Public School, Bengaluru

Subject :NSO Class : Class 4

The given picture shows two boys trying to move a boat from the beach into the water. Identify the forces as represented with labelled arrows D, E and F?

View All Answers (1)

Ans 1: (Master Answer)

Admin from revisewise, Noida

Class : Class 1

The correct answer is B.

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