National Science Olympiad Forum By SOF Olympiad Trainer - Page 226

User Forum

Ask Your Question

Select Class:

Agastya Tripathi from dps gurgaon, Gurgaon

Subject :NSO Class : Class 7

Which of the following statements is not true?

AWool is a natural protein fibre obtained from fleece of animals.
BSilk fibre is produced by the larvae of silkworms from their salivary glands for making a cocoon around them.
CThe quality of silk depends on the rearing (like the quality of leaves fed to the larvae and incubation temperature) and reeling practices followed.
DProcess of washing wool fibre to remove dust and grease is called ginning.

View All Answers (12)

Ans 1:

Agastya Tripathi from dps gurgaon, Gurgaon

Class : Class 4

Ans 2:

Agastya Tripathi from dps gurgaon, Gurgaon

Class : Class 4

Ans 3:

Agastya Tripathi from dps gurgaon, Gurgaon

Class : Class 4

Ans 4:

Agastya Tripathi from dps gurgaon, Gurgaon

Class : Class 4

Ans 5:

Agastya Tripathi from dps gurgaon, Gurgaon

Class : Class 4

Ans 6:

Agastya Tripathi from dps gurgaon, Gurgaon

Class : Class 4

Ans 7:

Agastya Tripathi from dps gurgaon, Gurgaon

Class : Class 4

Ans 8:

Agastya Tripathi from dps gurgaon, Gurgaon

Class : Class 4

Ans 9:

Agastya Tripathi from dps gurgaon, Gurgaon

Class : Class 4

Ans 10:

Agastya Tripathi from dps gurgaon, Gurgaon

Class : Class 4

Ans 11:

Agastya Tripathi from dps gurgaon, Gurgaon

Class : Class 4

Ans 12:

Agastya Tripathi from dps gurgaon, Gurgaon

Class : Class 4

Submit Your Answers

Post Your Answer

SANVI ROHILLA from The little shri, Rohtak

Subject :NSO Class : Class 5

Select the incorrect match.

AHinge joint - Knee
BBall and socket joint - Hip
CPivot joint - Elbow
DGliding joint - Wrist

View All Answers (1)

Ans 1:

Saksham Chanani from Sri Sri Academy, Kolkata

Class : Class 9

Submit Your Answers

Post Your Answer

Radhika Gupta from Dps civil lines aligarh , Aligarh

Subject :NSO Class : Class 5

Tina is pushing a book cart in a straight line as shown here. How can Tina turn the book cart to her right?

ABy pushing the book cart faster
BBy pushing on the left side of the book cart
CBy pulling the book cart backward
DBy pulling on the left side of the book cart

Ans is B

View All Answers (1)

Ans 1:

Ivan Tyagi from Chirec International School , Hyderabad

Class : Class 8

Submit Your Answers

Post Your Answer

Radhika Gupta from Dps civil lines aligarh , Aligarh

Subject :NSO Class : Class 5

Which observation is most likely made about the given model?

ASoil erosion occurs when moving water flows over the soil.
BWater drops formed on the glass cover fall back on the plants.
CThe snail prefers to drink water drops than fresh water.
DPlants grow better when planted outside than when planted inside.

Answer is B

View All Answers (7)

Ans 1:

Tanmay Chaudhary from MIET public school, MEERUT

Class : Class 7

Ans 2:

Umair Kamal from GEMS MODERN, DUBAI

Class : Class 8

Ans 3:

Aadi from Delhi Public School , golaghat

Class : Class 8

Ans 4:

Ayatika from Father Agnel school , Ghaziabad

Class : Class 5

Because the water droplets are inside the glass cover, so the fall back in.

Ans 5:

Sneha Sarkar from South city international school, Kolkata

Class : Class 7

Ans 6:

Vihaan Patil from Bombay Scottish School, Mahim Mumbai

Class : Class 6

Plz explain

Ans 7:

Ahann Agarwal from G. D. Goenka Public School Dwarka, NEW DELHI

Class : Class 7

Submit Your Answers

Post Your Answer

Radhika Gupta from Dps civil lines aligarh , Aligarh

Subject :NSO Class : Class 5

Which of the following Venn diagrams correctly represents the relationship amongst, "Carrot, Food, Vegetable" ?

A
B
C
D

Answer is A.

View All Answers (3)

Ans 1:

Radhika Gupta from Dps civil lines aligarh , Aligarh

Class : Class 8

There are 15 small triangles. Inside the rectangle there are 3 triangles. And there are 2 right-angled triangle. Total = 20. Answer - D. None of these

Ans 2:

SANVI ROHILLA from The little shri, Rohtak

Class : Class 5

No Radhika not the correct explanation

Ans 3:

SANVI ROHILLA from The little shri, Rohtak

Class : Class 5

Correct Explanation Is Vegetable is a part of overFood and carrot is a vegetable

Submit Your Answers

Post Your Answer

Irene from Kv, KOTTAYAM

Subject :NSO Class : Class 6

Which of the following statements are correct?
(i) The shape of a shadow depends on the position of the source of light.
(ii) A plane mirror can change the direction of light falling on it.
(iii) A pinhole camera forms an erect image of an object on a screen.
(iv) A shadow is formed when light passes through a transparent object.

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

View All Answers (1)

Ans 1:

Advait bhat from Kendriya Vidyalaya , Bangalore

Class : Class 9

Submit Your Answers

Post Your Answer

Yashvi from Dps BN, Bengaluru

Subject :NSO Class : Class 8

At my farmhouse I am facing East, then I turn left and walk 10 metres. I again turn right and walk 5 metres. Again I go 5 metres towards the South, and from there walk 5 metres towards the West. In which direction am I from my farmhouse?

AEast
BWest
CNorth
DSouth

View All Answers (0)

Submit Your Answers

Post Your Answer

Anaadya from Arsha Vidya Mandir, Chennai

Subject :NSO Class : Class 6

Which of the following statements are incorrect?
I. Mixture of kidney beans and chick peas can be separated by winnowing.
II. Salt from sea water can be obtained on a large scale by evaporation.
III. An alloy is a homogeneous mixture of a metal with another metal or nonmetals.
IV. Seeds of wheat can be separated from a bundle of wheat stalks by sieving.

AII and III only
BI and IV only
CI, III and IV only
DNone of these

C is right since III is wrong and alloys can only have metals

View All Answers (7)

Ans 1:

Saikrishna Nandakumar from Shishya BEML Public School, BANGALORE

Class : Class 6

bruh

Ans 2:

Saikrishna Nandakumar from Shishya BEML Public School, BANGALORE

Class : Class 6

Ans 3:

Saikrishna Nandakumar from Shishya BEML Public School, BANGALORE

Class : Class 6

Ans 4:

Saikrishna Nandakumar from Shishya BEML Public School, BANGALORE

Class : Class 6

Ans 5:

Saikrishna Nandakumar from Shishya BEML Public School, BANGALORE

Class : Class 6

Ans 6:

Devam Grover from RPS International School, Gurugram

Class : Class 8

Ans 7:

Saikrishna Nandakumar from Shishya BEML Public School, BANGALORE

Class : Class 6

Submit Your Answers

Post Your Answer

Arya Kiran from PSBB KK NAGAR, Chennai

Subject :NSO Class : Class 6

Read the given relationships and select the option that will correctly complete them.
I. Madar : Wind :: ___P___ : Explosion
II. Wheat : Rabi crop :: ___Q___ : Kharif crop
III. Rice : Clayey soil :: ___R____ : Sandy soil

	P	Q	R
A	Xanthium	Bajra	Rice
B	Pea	Soybean	Groundnut
C	Hiptage	Jowar	Jute
D	Dandelion	Bajra	Cotton

View All Answers (0)

Submit Your Answers

Post Your Answer

Satvik Agrawal from Delhi Public School, bhopal

Subject :NSO Class : Class 5

Farheen was practising outside the school with her basketball team when she saw a storm and lightning in the sky with dark clouds. She predicts that, it is going to rain soon. The safest thing for the team to do is to _____.

AKeep practising, but stop if it starts raining too hard
BKeep practising, but listen to the radio for the weather report
CStop practising, and stand under a tree until the storm passes away
DStop practising, and go inside a building until the storm passes away

User Forum

Ans 1:

Ans 2:

Ans 3:

Ans 4:

Ans 5:

Ans 6:

Ans 7:

Ans 8:

Ans 9:

Ans 10:

Ans 11:

Ans 12:

Ans 1:

Ans 1:

Ans 1:

Ans 2:

Ans 3:

Ans 4:

Ans 5:

Ans 6:

Ans 7:

Ans 1:

Ans 2:

Ans 3:

Ans 1:

Ans 1:

Ans 2:

Ans 3:

Ans 4:

Ans 5:

Ans 6:

Ans 7:

Related Links