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प्रश्न
Materials which can be compressed or cut easily are called _______.
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उत्तर
Materials which can be compressed or cut easily are called Soft materials.
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संबंधित प्रश्न
Very Short Answer Type Question:
Select a lustrous material out of the following substances.
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Short Answer Type Question:
Why is water important for our body?
Look at the pictures and identify the materials by which they are made of:
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| ____________ | ____________ | ____________ | ___________ | _____________ |
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| ____________ | ____________ | ____________ | ____________ | ____________ |
Sand paper is a good example for smooth materials.
Chalk dissolves in water.
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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 |
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| (e) chlorine | (v) for making rails |
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- Paper stained with oil
- Magnet
- Glass spectacles
Help Boojho in finding out the material(s) which is/are opaque.
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| COLUMN I | COLUMN II | ||
| (a) | Surgical instruments | (i) | Plastic |
| (b) | Newspaper | (ii) | Animal product |
| (c) | Electrical switches | (iii) | Steel |
| (d) | Wool | (iv) | Plant product |
Sugar, salt, mustard oil, sand, sawdust, honey, chalk powder, petals of flower, soil, copper sulphate crystals, glucose, wheat flour are some substances given to Paheli. She wants to know whether these substances are soluble in water or not. Help her in identifying soluble and insoluble substances in water.
