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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
Very Short Answer Type Question:
Name two gases which are insoluble in water.
Short Answer Type Question:
Metals generally occur in solid state and are hard. Name a metal that exists in liquid state and a metal that is soft and can be cut with knife.
Long Answer Type Question:
Write an experiment to show that our palm is translucent.
Long Answer Type Question:
How can you show that some solids like sugar, salt are soluble in water whereas solids like chalk powder and sand are not soluble in water?
Find the odd one out from the following:
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.
soekrnee
