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Use your brain power! In cold countries ...

Use your brain power!
In cold countries how do aquatic animals remain alive even after the rivers or lake freeze in winter?

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TARGET PUBLICATION-PROPERTIES OF NATURAL RESOURCES -SOLVED
  1. Take some water in a pot and add few pieces of ice to it . Observe wha...

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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  17. Answer in one word : Capacity of air to hold water vapour .

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  18. Answer in one word : The medium for the transmission of sound .

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  19. Answer the following : What are the uses of water ?

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  20. Answer the following : Describe the types of soil .

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