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प्रश्न
Materials which can be bent or stretched easily are called ______.
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उत्तर
Materials which can be bent or stretched easily are called Flexible.
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संबंधित प्रश्न
Very Short Answer Type Question:
Suggest two bases on which we can group objects.
Name five objects which can be made from wood.
Stone is transparent, while glass is opaque.
Sugar does not dissolve in water.
Smooth materials do not have ups and downs.
What is material?
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 |
Some of the following statements are incorrect. Find the incorrect statements and correct them.
- The property of metals by virtue of which they can be drawn into wires is called ductility.
- Metals are good conductors of electricity but poor conductor of heat.
- Articles made up of metals produce ringing sound when struck hard.
- Oxides of non-metals and metals are acidic in nature.
- A less reactive metal displaces a more reactive metal from its salt solution in water.
Boojho found a bag containing the following materials
- Mirror
- Paper stained with oil
- Magnet
- Glass spectacles
Help Boojho in finding out the material(s) which is/are opaque.
Why do you think oxygen dissolved in water is important for the survival of aquatic animals and plants?
