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How do you know that rusting of iron is ...

How do you know that rusting of iron is a change? If you are given two eggs, can you determine which one is boiled and which one is not ? Explain.

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NCERT TELUGU-CHANGES AROUND US-EXAMPLE
  1. Is the change of ice into water, a temporary or permanent change ? Exp...

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  2. How do you know that rusting of iron is a change? If a raw egg is boil...

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  3. How do you know that rusting of iron is a change? If you are given two...

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  4. Name five changes you notice in your surroundings. Classify them as na...

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  5. Some changes are listed below, classify them as temporary and permanen...

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  6. We use clay to make idols. Can we get back clay from the idol ? What t...

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  7. Carpenter made a chair using wood, what type of change is it?

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  8. What changes do you observe with the change of seasons every year?

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  9. The word " mole " was introduced by whom?

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  10. Rafi said "flour from rice/wheat is a man made change". He wants to ma...

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  11. What is responsible for curding of milk ? Give your reasons.

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  12. Why shouldn't we taste unkown things ?

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  13. We read in childhood that " Sun rises in the east " . Do you think it ...

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  14. Can you describe what happens when milk is converted into curd or yogh...

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  15. What is the positon of neutron in an atom?

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  16. What will happen if a decorative colour paper is dipped in water? Pred...

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  17. Write various process involved in making ghee from milk. What changes ...

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  18. How the milk change in to curd?

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  19. What are the conditions that favour in chaging of milk to curd ?

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  20. Does the sunrise exactly in the east in all seasons ? What activity yo...

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