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प्रश्न
How can a change occur in a substance?
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उत्तर
A change can occurs in a substance by an alteration in the properties such as colour, texture and the state of the substance since there is formation of a new substance.
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संबंधित प्रश्न
Fill in the blank
Burning of fuel is a _______ change.
State whether the following is physical or chemical changes.
passing electric current through a heater rod —
Distinguish between the following.
Natural change and man-made change
Under which different types can the following changes be classified?
Conversion of milk into yoghurt.
Under which different types can the following changes be classified?
Bursting of a cracker.
Under which different types can the following changes be classified?
Revolution of the earth around the sun.
Under which different types can the following changes be classified?
Stretching of a spring.
Give reason.
While purchasing canned food, its expiry date should be checked.
______ is the process in which something becomes different from what it was earlier.
Cut vegetables turn brown when exposed to air, this is due to ______.
