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The Address from Somaiya, Mumbai
Subject :NSO    Class : Class 8

Refer to the given dichotomous key. Identify P-T and select the correct statement regarding them.
I. (A) It is a unicellular organism. - Go to II
(B) It is a multicellular organism. - Go to IV
II. (A) It possesses well organised nucleus. - Go to III
(B) It lacks well organised nucleus. -
III. (A) Nutrition is parasitic. -
(B) Nutrition is mixotrophic. -
IV. (A) It possesses chlorophyll. -
(B) It lacks chlorophyll. -

AP could be slipper animalcule.
BR could be Euglena which possesses cilia that help in movement.
CQ could be Plasmodium which causes malaria or it could be Entamoeba which causes amoebic dysentery in humans.
DS could be an alga like Chlamydomonas whereas T could be a scavenger like vulture or a decomposer like Giardia.


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Prisha bhuyan from Chirec international school, Hyderabad
Subject :NSO    Class : Class 1

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avik gupta from rbmhs, jaipur
Subject :NSO    Class : Class 2

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Neha Choppara from Kennedy, Hyderabad
Subject :NSO    Class : Class 7

During the science activity, class teacher arranged the test tubes as shown in the figure and asked students to predict the effect of various indicators on the given solutions.


Which of the following statements are correct?
I. Turmeric solution will turn red in test tubes 1 and 4.
II. Methyl orange will turn yellow in test tubes 1 and 3.
III. China rose indicator will turn dark pink in test tube 2.
IV. Blue litmus solution will turn red in test tubes 1 and 4.

AI and IV only
BI, II and IV only
CII and III only
DNone of these


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from GIIS,
Subject :NSO    Class : Class 5

Padma conducted an experiment as shown below by using different materials.


Padma pulled on the spring balance until the material was separated from the magnet. The readings on the spring balance were recorded as shown in the table below.



What conclusions could Padma make from her experiment?
(i) Soft iron needs the largest force in order to be separated from a magnet.
(ii) Nickel is most easily magnetised while soft iron is least easily magnetised.
(iii) Nickel and cobalt are non-magnetic materials.
(iv) Steel makes the strongest permanent magnet.

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


A is the correct answer

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ria from edify, pune
Subject :NSO    Class : Class 3

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Aaryan Mehta from Anand Niketan, Ahmedabad
Subject :NSO    Class : Class 8

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Avisha from DPS pal road, Jodhpur
Subject :NSO    Class : Class 9

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Agastya Aryaman from DPS GREATER NOIDA, GREATER NOIDA
Subject :NSO    Class : Class 8

Read the given paragraph, where few words have been italicised.
The pineal gland secretes a hormone progesterone which helps to regulate sleep pattern. Thyroid glands release hormone which regulate the level of calcium in the blood with the help of calcitonin which is produced in the parathyroid glands.
Select the correct option regarding the given paragraph.
(i) Positions of pineal and parathyroid should be interchanged.
(ii) Progesterone should be replaced by melatonin.
(iii) Parathyroid should not be replaced as it is correctly mentioned.
(iv) Positions of progesterone and calcitonin should be interchanged.
(v) Positions of thyroid and parathyroid should be interchanged.

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


lol

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from GIIS,
Subject :NSO    Class : Class 3

Ans 1:

from GIIS,
Class : Class 4

Ans 2:

from GIIS,
Class : Class 4

Ans 3:

from GIIS,
Class : Class 4

Ans 4:

from GIIS,
Class : Class 4

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