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प्रश्न
What is it made from? Why?
A screwdriver
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उत्तर
- Iron, steel, and aluminum comprise a screwdriver.
- The rigidity of a screwdriver enables it to effortlessly penetrate a screw in a piece of wood, metal, or wall.
संबंधित प्रश्न
Write the properties of this substance.
Sugar
Write the properties of this substance.
Coal
What will happen if....? And why?
Nails are made of plastic.
Why does this happen?
The fragrance of incense sticks lighted in one corner of a room spreads to the other corner.
Very Short Answer Type Question:
Name some substances which are made from plastics.
Short Answer Type Question:
Write any four properties of materials.
Short Answer Type Question:
Name the naturally occurring hardest substance known.
Long Answer Type Question:
Describe an experiment to prove that water is transparent.
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
