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Subject :NSO    Class : Class 6

Study the given classification chart carefully and identify the incorrect statements regarding the properties U, V, W, X, Y and Z.

I. U refers to 'more dense than water' while Z refers to 'non-edible'.
II. W refers to 'malleability' while V refers to 'hardness'.
III. Y refers to 'more dense than water' while X refers to 'ductility'.
IV. W refers to 'magnetic material' while X refers to 'non-magnetic material'.

AII and III only
BI and III only
CI, III and IV only
DI, II, III and IV


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Subject :NSO    Class : Class 6

A mixture of two immiscible liquids can be separated by (i) , a mixture of two volatile liquids with a minimum difference of 25°C in boiling points can be separated by (ii) , a soluble solid from water can be separated by (iii) while a mixture of two solids having different sizes can be separated by (iv) .
(i), (ii), (iii) and (iv) could be respectively

ASeparating funnel, boiling, filtration and sieving
BDecantation, evaporation, sieving and winnowing
CSeparating funnel, distillation, evaporation and sieving
DNone of these.


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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
ko

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Subject :NSO    Class : Class 3

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Subject :NSO    Class : Class 4

Letters H to M in the given food web represent six animals.

Which of the following is correct regarding this?

A A decrease in population of H will result in an increase in populations of l and L.
B An increase in population of K will result in an increase in populations of l and J.
C A decrease in population of M will result in an increase in populations l and K.
D An increase in population of L will result in a decrease in populations of H and J.


The question is not specific about the direction of arrow and what it represents-whether consumption or 'the consumed'?It can be inferred that in option D, M is being consumed by I and K. In this case an increase in L will decrease H which will increase I's population thereby reducing J.In that case option D would be correct.

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Subject :NSO    Class : Class 7

Anita conducted an experiment to calculate the percolation rate of water in different types of soil samples. She took 200 ml water and poured it into three different types of soil samples. She noted the time that was taken by water to percolate through soil. Which of the following graphs correctly shows the relationship between amount of water percolated through different soil samples with respect to time?


A
B
C
D


nice question

Ans 1:

Class : Class 7

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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 5

The given figure shows three states X, Y and Z in which a matter can exist.

Identify these states and processes (P, Q, R and S) and select the incorrect option regarding them.

AProcess R is responsible for drying of wet clothes when put on clothesline.
BProcess S is responsible for formation of clouds in the atmosphere.
CA naphthalene ball converts from its X state to Y state and vice versa by involving processes P and Q.
DDuring processes P and R, heat energy is used to overcome the force of attraction between the particles.


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Subject :NSO    Class : Class 5

Select the option which correctly identifies true (T) and false (F) statements.
(i) Ionosphere is a part of troposphere.
(ii) Smoke combines with oxygen to form smog, that affects visibility.
(iii) The ozone layer absorbs harmful UV rays of Sun.
(iv) Clouds, rain, fog and snow are all forms of water.
(v) Air exerts pressure in downward direction only.

(i) (ii) (iii) (iv) (v)
A F T T T T
B F F F T F
C T T F F T
D F F T T F


THIS IS MY FIRST POST IN THIS QUESTION. WHY DO NOBODY POSTED HERE? IT IS MANY YEARS OLD MOCK.

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Subject :NSO    Class : Class 5

Study the given Venn diagram and select the incorrect option regarding organs P, Q and R.


A P could be a sense organ that also helps in mixing of food with saliva in the mouth.
B Q could be an organ which churns the food so that it mixes with digestive juices and acid.
C P could be a sense organ that helps to take up atmospheric air and possesses hair which traps dust particles and germs.
D R could be an organ that pumps blood to all other body organs through blood vessels.


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