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प्रश्न
Solve this crossword by using the clues that follow-
Across
1. Energy in the form of sunlight is absorbed by the green plants in this process.
4. The reddish-brown substance formed over iron in the presence of oxygen and moisture.
5. This change is permanent and irreversible.
6. The process in which a solid directly changes into gaseous state.
Down
1 . It is the change that takes place in case of swinging pendulum of a clock. –
2. Occurrence of this is a non-periodic change as well as a natural change.
3. It is a physical change.
उत्तर
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संबंधित प्रश्न
Classify the following as chemical or physical change:
Making a fruit salad with raw fruits
Write short answer.
Name two reversible changes.
Classify the following changes as physical or chemical:-boiling
State whether the following is physical or chemical changes.
respiration in living beings —
Tick the most appropriate answer.
Physical changes are
Write true or false
Deforestation is a man-made change.
A physical change is temporary. Explain.
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.
Natural and man-made change.
Give a reason why
Change of seasons is a periodic change while the change of weather is a non-periodic change.
Which of the following is not a physical change?
