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प्रश्न
State whether the following is physical or chemical changes.
water cycle in nature —
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उत्तर
physical change,
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संबंधित प्रश्न
Classify the following as chemical or physical change:
Melting of butter in a pan
Melting of solid (wax) is a physical change.
Write short answer.
What are man-made changes ?
A burning candle shows both physical and chemical changes. Explain ?
Write true or false
Earthquake is a desirable change.
Give three reasons why melting of wax, is considered a physical change while burning of a candle, a chemical change.
Change is the law of nature which occurs in everyday life.
State when a substance [i.e. matter] undergoes a kind of change.
Digestion of food is a physical change.
You are given some candle wax. Can you make a candle doll from it? What kind of change is this?
Assertion: Burning of wood log to charcoal is a physical change.
Reason: The products formed of burning a piece of wood can be easily converted back to wood log.
