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What are the changes observed, when smal...

What are the changes observed, when small piece of woodpaper and cotton are burnt?

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NCERT TELUGU-CHANGS AROUND US-EXERCISE
  1. What happens when you burn camphor?

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  2. What happens when you put a small quantity of Camphor in a dish and pl...

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  3. What are the changes observed, when small piece of woodpaper and cotto...

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  4. Mention some physical changes you observe in your daily life.

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  5. Explain what are physical and chemical changes: Give examples.

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  6. How do you make crystallization of urea?

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  7. Ice convert((heat))to water convert((heat)) to water vapour. W...

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  8. What is a chemical change ? What are its properties ?

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  9. What is a physical change ? What are its properties?

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  10. What is rust and rusting? Why does iron rust ? What type of a change i...

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  11. What is crystallization ? How do you make crystallization of copper su...

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  12. Explain the following chemical changes : a) A piece of magnesium wire ...

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  13. Explain the following chemical changes : An iron nail is dropped in a ...

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  14. Explain the following chemical changes : Baking soda is added to vineg...

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  15. Write the reactions and give reasons: Carbondioxide gas in bubbled thr...

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  16. What are the differences between physical and chemical changes ?

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  17. Draw a diagram of the activity you perform to observe the reaction bet...

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  18. Draw a diagram of the activity you perfom to observe changes in water ...

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  19. Digestion of food is achange:

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  20. Fill in the blanks in the following statements. The chemical name of v...

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