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प्रश्न
What is it made from? Why?
A screwdriver
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.
Iron ball
Write the properties of this substance.
Salt
Write the properties of this substance.
Soap
Why does this happen?
The fragrance of incense sticks lighted in one corner of a room spreads to the other corner.
Short Answer Type Question:
Name the naturally occurring hardest substance known.
Which liquid metal is used for making thermometers?
Find out the names of three metals and three non-metals from the box given as figure.
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 |
Arrange the jumbled words to arrive at the appropriate name of material and also write two uses of it.
gavnier
