SOF - NSO Level 2 Sample Papers for Class 7

Class 7 sample paper & practice questions for the level 2 of National Science Olympiad (NSO) are given below. Syllabus for level 2 is also mentioned for these exams. You can refer these sample paper & quiz for preparing for the exam.

Resources:

Sample Questions from Olympiad Success:

Q.1

Q.2

Q.3

Q.4

Q.5

Q.6

Q.7

Q.8

Q.9

Q.10

Q.1	Why is tungsten used as a filament in electric bulbs? A. It is sonorous. B. It is metallic. C. It has a high melting point. D. It has high density.
a)	A
b)	B
c)	C
d)	A and D

Q.2	Study the given reaction. NaOH + HCl → NaCl + H₂O Identify the salt in the above reaction.
a)	NaCl
b)	H₂O
c)	HCl
d)	NaOH

Q.3	Study the following statements about ozone: 1. It is essential for breathing of living organisms. 2. It is used to disinfect water. 3. It absorbs ultraviolet rays. 4. Its proportion in air is about 3%. Which of these statements are correct?
a)	1 and 3
b)	2 and 3
c)	1 and 4
d)	1, 2, 3 and 4

Q.4	Which of the following is the best thing to do during heavy lightning?
a)	Lying on the ground in an open place.
b)	Going into the nearest water body.
c)	Staying indoors away from metallic doors or windows.
d)	Standing under a tall tree.

Q.5	How does our government protect the rainforests of our country? (i) Prohibits the felling of trees (ii) Trees that have been chopped down are replanted (iii) Discourages the use of pesticides in agriculture
a)	(i) and (ii) only
b)	(i) and (iii) only
c)	(ii) and (iii) only
d)	(i), (ii) and (iii)

Q.6	Anita gets a home assignment to prepare a file of fabrics made up of different fibers. She takes a piece of fabric and burns it to identify the fiber. It burns with a smell of burning plastic. What does this show?
a)	The fabric is made up of cotton.
b)	The fabric is made up of expensive material.
c)	The fabric is made up of pure wool.
d)	The fabric is made up of synthetic fibers.

Q.7	Which statement is true about parasitic plants? Statement 1: Organisms which break glucose into alcohol and carbon dioxide. Statement 2: Organisms which draw nutrition from living tissues of other plants.
a)	Statement 1 is correct
b)	Statement 2 is correct
c)	Both the statements are correct
d)	Both the statements are incorrect

Q.8	Identify the group of neutral substances. P. Common salt solution, mustard oil, oxygen, carbon dioxide Q. Sugar solution, apple juice, oxygen, nitrogen R. Glucose solution, kerosene, petrol, oxygen S. Salt solution, mustard oil, lime water, nitrogen
a)	P
b)	Q
c)	R and S
d)	R

Q.9	A student identified the following characteristics in animals. The given characteristics are found in which animal? (i) Strong claws and broad hip girdles (ii) Spines to prevent from slipping (iii) Ability to climb trees
a)	Terrestrial animal
b)	Aquatic animal
c)	Amphibian animal
d)	Arboreal animal

Q.10	Why two thin shirts can keep us warmer than a single thick shirt in winter?
a)	Two thin shirts become thicker so prevent transmission of heat.
b)	Air layer between two shirts works as good conductor.
c)	Air layer between two shirts behaves like insulating media.
d)	No radiation of heat takes place

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Answers to Sample Questions from Olympiad Success:

Q.1 )c	Q.2 )a	Q.3 )b	Q.4 )c	Q.5 )a	Q.6 )d	Q.7 )b	Q.8 )d	Q.9 )d	Q.10 )b

Answers to Sample Questions from Olympiad Success:

Q.1 : c | Q.2 : a | Q.3 : b | Q.4 : c | Q.5 : a | Q.6 : d | Q.7 : b | Q.8 : d | Q.9 : d | Q.10 : b

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