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प्रश्न
Look at the pictures and identify the materials by which they are made of:
(paper, clay, glass, wood, plastic, metal rubber, wax
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| ____________ | ____________ | ____________ | ___________ | _____________ |
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| ____________ | ____________ | ____________ | ____________ | ____________ |
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उत्तर
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| Plastic | Plastic | Clay | Glass | Wood |
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| Metal | Wood | Wax | Rubber | Paper |
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संबंधित प्रश्न
Long Answer Type Question:
‘Grouping of objects helps the shopkeeper.’ Justify the statement.
We cannot compress, cut or bend the rough materials easily.
Sugar does not dissolve in water.
Choose the odd one:
Materials which have ups and downs on their surface are called ______.
Name some examples for shiny materials?
Complete the crossword given in the figure with the help of the clues.
Across
1. Which is generally hard, ductile, malleable and sonorous.
2. A metal is called so it can be drawn into wires.
3. Metal bells are used because of this property.
Down
4. A metal generally used for making jewellery.
5. A metal which is liquid at room temperature.
6. A metal which reacts with acid as well as base to form hydrogen gas.
7. Substances used to enhance the growth of plants.
8. Property by virtue of which metals can be beaten into thin sheets.
Which of the following materials is not lustrous?
Match the objects given in Column I with the materials given in Column II.
| COLUMN I | COLUMN II | ||
| (a) | Surgical instruments | (i) | Plastic |
| (b) | Newspaper | (ii) | Animal product |
| (c) | Electrical switches | (iii) | Steel |
| (d) | Wool | (iv) | Plant product |
Differentiate among opaque, translucent and transparent materials, giving one example of each.
