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Use your brain power! Will sound the hea...

Use your brain power!
Will sound the heard in space?

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  1. What change takes place in a balloon on filling air in it ?

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  2. Use your brain power! What would happen if all the air surrounding us ...

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  3. Use your brain power! Will sound the heard in space?

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  4. Take a bucket of water . Drop given articles in it . Make separate lis...

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  5. Take some water in a pot and add few pieces of ice to it . Observe wha...

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  6. Keep a glass full of water in the freezer for five to ten minutes . Th...

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  7. Use your brain power! In cold countries how do aquatic animals remain ...

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  8. Take two big glasses of water . Add 4-5 spoonfuls of salt to the water...

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  9. Why is it easier to swim in the sea than in a wall or a lake ?

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  10. Use your brain power! Why is it easy to plough sandy soil?

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  11. Use your brain power! What is the water holding capacity of silt soil?

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  12. Oral work : In which state does water occur below 4⁰C ?

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  13. Oral work : Why is water known as the universal solvent ?

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  14. Oral work : What is the pH of alkaline soil ?

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  15. Oral work : Name the leguminous crops cultivated to restore the fert...

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  16. Oral work : Mention the tests used to find out the characteristics o...

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  17. Fill in the blanks : The proportion of large particles is high in ……...

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  18. Fill in the blanks : …………. Is measured in g/cc .

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  19. Give scientific reasons for the following Glass bottle completely fill...

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  20. Answer in one word : Soil used for making crockery .

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