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प्रश्न
To identify materials of common use
Procedure – Just move around in your house – in the drawing room, sitting room, bedroom, kitchen, bathroom etc. Identify the things and All in the blanks in the table given below
| No. | Place | Name of the thing | Material used for making the thing |
| 1 | Study room | ||
| 2 | Drawing room | ||
| 3 | Kitchen | ||
| 4 | bathroom | ||
| 5 | Any other place |
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उत्तर
| No. | Place | Name of the thing | Material used for making the thing |
| 1 | Study room | Table, chair, books pens, pencils, table lamp, computer, fan | Wood, plastic, paper, glass, bakelite, connecting wires made of metal and plastics |
| 2 | Drawing room | Sofa, table, chairs, fan, curtains, windows etc. | Wood, cloth, coir, paint, plastics, aluminium, glass etc. |
| 3 | Kitchen | Taps, wash basin, cupboards, utensils, heating vessels strainer, containers aqua pure etc | Steel, aluminium, glass, china clay, iron, plastic, copper, stainless steel, brass etc |
| 4 | bathroom | Taps, tubs, mugs, tooth brush, tooth paste, soap, pail etc. | Iron, brass, stainless steel, plastics etc |
| 5 | Any other place | Scooter, car, road, rooms, trucks, shops | Iron, rubber, coaltar, bricks, wood, plastics, clothes. |
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संबंधित प्रश्न
How do solids, liquids and gases differ in shape and volume?
Name the smallest particle from which matter is made up.
What are fluids? Give two examples
Give reasons
We can walk through air.
Fill in the blanks:
The physical state of a substance, which has neither fixed volume nor fixed shape is a ______.
For the following statement, say whether it describes a solid, a liquid or a gas.
Particles are far apart and move in all directions
Describe simple experiments to prove that liquids have no definite shape
A rubber ball changes its shape on pressing. Can it be called a solid?
______ particles are tightly packed into a definite shape.
The density of solid Argon is 1.6 ml at - 233°C. If the Argon atom is assumed to be sphere of radius 1.5 × 10-8 cm, then the ______ % of solid Argon is apparently occupied.
[Take : NA = 6 × 1023, Atomic mass of Ar = 40]
