Subject :NSO Class : Class 7
Subject :NSO Class : Class 7
Beena performed an experiment on two soil samples X and Y as shown, to study the absorption of water by the soil. She poured 100 ml of water in both the samples and noted the percolated water. Identify X and Y.
| X | Y | |
| (A) | Laterite soil | Sandy soil |
| (B) | Loamy soil | Desert soil |
| (C) | Sandy soil | Clayey soil |
| (D) | Clayey soil | Sandy soil |
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Subject :NSO Class : Class 7
When acids are added to different indicators, some colour changes occur. These colour changes are listed below.
Identify P, Q, R, S and T respectively.
| P | Q | R | S | T | |
| (A) | Colourless | Methyl orange | Blue | Red | Yellow |
| (B) | Colourless | China rose | Blue | Red | Yellow |
| (C) | Pink | Methyl orange | Blue | Red | Reddish-brown |
| (D) | Pink | China rose | Red | Blue | Reddish-brown |
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Subject :NSO Class : Class 7
Two dented ping pong balls were each placed in two beakers of water at different temperatures.
| Beaker | P | Q |
| Volume of water (mL) | 500 | 500 |
| Temperature of water (C) | 25 | 80 |
What happened to the ping pong balls?
(A) Balls expanded in both the beakers.
(B) Ball expanded in beaker P and contracted in beaker Q.
(C) Ball expanded in beaker P and remained as such in beaker Q.
(D) Ball expanded in beaker Q and remained as such in beaker P.
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Subject :NSO Class : Class 2
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Subject :NSO Class : Class 8
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Subject :NSO Class : Class 4
How many food chains are there in the given food web?
(a) 11
(b) 12
(c) 14
(d) 15
answer should be 15
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Subject :NSO Class : Class 5
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Subject :NSO Class : Class 5
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Subject :NSO Class : Class 4
