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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
Tick the most appropriate answer.
3. Physical changes are
- permanent.
- periodic,
- temporary
- irreversible.
State the various conditions that favour the process of evaporation.
Classify the following changes as physical or chemical:-boiling
Fill in the blank.
Growing of a seedling into a plant is _______ change.
Which of the following are physical changes and which are chemical changes ?
Rusting of iron
Change is the law of nature and occurs in our everyday life, at all times and in all places.
Differentiate between the following change with a suitable example.
Periodic and non-periodic change
Give a reason why
Freezing of water is a reversible change while burning of a candle – an irreversible change.
In a solution of salt in water, water is the solute
Give two examples for the following case:
Physical changes which are reversible
The change of state of a substance from solid to liquid and liquid to gas is ______.
