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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.
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उत्तर
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संबंधित प्रश्न
Classify the following as chemical or physical change:
Burning of paper and wood
Explain why burning of wood and cutting it into small piece are considered as two different types of changes.
A burning candle shows both physical and chemical changes. Explain ?
State whether the following is physical or chemical changes.
glowing of a bulb -
State whether the following is physical or chemical changes.
Slaking of lime —
Write true or false
Burning of sugar is a temporary change.
True or false
Is the process of digestion a physical change?
Write true or false
Deforestation is a man-made change.
Classify the Following as a Physical Or a Chemical Change.
Curdling of Milk
The change of state of a substance from solid to liquid and liquid to gas is ______.
