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When you burn a piece of wood different ...

When you burn a piece of wood different changes take place. Analyse the folloiwng.

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NCERT TELUGU-CHANGS AROUND US-EXERCISE
  1. Between Coastal and dry land areas, where is rusting of iron objects i...

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  2. Sudheer wants to make his vessels, which are made of Brass and copper,...

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  3. When you burn a piece of wood different changes take place. Analyse th...

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  4. When you burn a piece of wood different changes take place. Analyse th...

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  5. When you burn a piece of wood different changes take place. Analyse th...

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  6. When you burn a piece of wood different changes take place. Analyse th...

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  7. What are periodical changes ?

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  8. What are physical changes ?

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  9. Do you find any new material after burning ?

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  10. Are the materials present before burning and after burning the same ?

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  11. Can you name some changes which form new substances ?

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  12. Are there any other ways by which rusting of iron can be prevented ?

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  13. Do these articles handles of cycles etc. rust ? If not why ?

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  14. what is the percentage of sources of water on earth ?

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  15. How can we know that a given article is made up of iron or not ?

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  16. What is galvanization?

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  17. What do you observe on the cut pieces of fruits and vegetables? Why do...

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  18. How can we prevent browning of cut vegetables and fruits?

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  19. Does the ash formed look like Magnesium ribbon?

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  20. Do you think the magnesium ribbon and the ash have the same compositio...

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