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प्रश्न
Sort the given objects as rough or smooth.
| Wet soap | Coir | Feather | Stone |
| ______ | ______ | ______ | ______ |
| Glass ball | Paperboard | Sand paper | Plastic spoon |
| ______ | ______ | ______ | ______ |
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उत्तर
| Wet soap | Coir | Feather | Stone |
| Smooth | Rough | Smooth | Rough |
| Glass ball | Paperboard | Sand paper | Plastic spoon |
| Smooth | Smooth | Rough | Smooth |
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संबंधित प्रश्न
Very Short Answer Type Question:
Is oil soluble in water?
Very Short Answer Type Question:
Name two objects which are made from opaque materials.
Very Short Answer Type Question:
What is common between salt and sand?
Match the objects that are made of the same material.
| A | B | C |
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Stone is transparent, while glass is opaque.
Choose the odd one:
Paheli prepared a blue coloured solution of copper sulphate in beaker A and placed an iron nail in it. Boojho prepared a yellowish green solution of ferrous sulphate in beaker B and placed a copper wire in it. What changes will they observe in the two beakers after an hour?
Match the substances in Column A with their applications given in Column B.
|
Column A |
Column B |
| (a) oxygen | (i) for making crackers |
| (b) copper | (ii) for disinfecting water |
| (c) sulphur | (iii) all living beings inhale during breathing |
| (d) iron | (iv) for making electric wires |
| (e) chlorine | (v) for making rails |
Pick one material from the following which is completely soluble in water.
Which pair of substances among the following would float in a tumbler half filled with water?
