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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.
Glass
Short Answer Type Question:
Write any four properties of materials.
Short Answer Type Question:
Why is water called a universal solvent?
Long Answer Type Question:
Write an experiment to show that our palm is translucent.
List all items known to you that float on water. Check and see if they will float on an oil or kerosene.
Materials which can be drawn into wires are called ductile. Which of the following is not a ductile material?
Which liquid metal is used for making thermometers?
If in the following figure, iron nail is replaced by a wooden stick, will the bulb glow or not? Justify your answer.
You are provided with the following materials – turmeric, honey, mustard oil, water, glucose, rice flour, groundnut oil.
Make any three pairs of substances where one substance is soluble in the other and any three pairs of substances where one substance remains insoluble in the other substances.
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 |
