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प्रश्न
What will happen if....? And why?
Nails are made of plastic.
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उत्तर
If nails are made out of plastic, they cannot be used for their usual purposes. They could not be hammered like iron nails and would not possess the strength which iron nails have. It means they would have no strength to hold the things together.
संबंधित प्रश्न
Write the properties of this substance.
Salt
Write the properties of this substance.
Soil
Very Short Answer Type Question:
Is a substance which can be compressed soft or hard?
Very Short Answer Type Question:
Name some substances which are made from plastics.
Short Answer Type Question:
Metals have lustre (shine). Give the reason why some metal articles become dull and loose their shine.
Find the odd one out from the following:
You are provided with the following materials
- Magnifying glass
- Mirror
- Stainless steel plate
- Glass tumbler
Which of the above materials will you identify as transparent?
Which type of the following materials is used for making the front glass (wind screen) of a car?
During summer holidays, a group of children collected a lump of salt, green grass, broken glass piece, a small thermocol box, pen, iron nail, glass marbles, hair, naphthalene ball, a piece of sugar candy (mishri) and tried to group them on the basis of properties given in table below. Help them in filling the table.
| Name of the material |
Appearance (Hard/Soft) |
Transparency (Transparent/ Translucent/ Opaque) |
Floats/ Sinks in water |
Soluble/ Insoluble in water |
Arrange the jumbled words to arrive at the appropriate name of material and also write two uses of it.
tcaslpi
