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Answer the question in short: Why heate...

Answer the question in short:
Why heaters fitted near the floor and air conditioners near the ceiling in a room?

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  3. Answer the question in short: Why heaters fitted near the floor and a...

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  4. Give scientific reasons: Dew drops are formed on the grass in winter.

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  5. Answer the question in short: Why are the houses in Rajasthan painted ...

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  6. Answer the question in short: Why is the outer coat of penguins of Ant...

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  7. Use your brain power: Why do we wear woolen clothes in winter?

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  8. Use your brain power: Why do we use white clothes in summer and dark ...

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  9. Give scientific reasons: In winter why does an iron pillar feel colde...

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  10. Give scientific reasons: An ordinary glass bottle cracks when boiling...

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  11. Give scientific reasons: The telephone wires which sag in summer beco...

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  12. Use your brain power: Why is there a gap at the joints of rails and o...

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  13. Use your brain power: Why is mercury or alcohol used in a thermometer...

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  14. Give reason : Why does a hot substance not remain hot after two or th...

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  15. Rub your palms against each other and put them on your cheeks. What do...

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  16. Apparatus: Bars of stainless steel, aluminium and copper, a candle, a ...

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  17. Apparatus: A beaker, potassium permaganate crystals, a burner, water, ...

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  18. Light a candle and stand it upright. Hold your hands on its two sides ...

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  19. Light a candle and stand it upright. Hold your hands on its two sides ...

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