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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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VGS PUBLICATION-BRILLIANT-CHANGES AROUND US-EXERCISE
  1. Ravi prepared carbondioxide using baking soda and vinegar. Carbondioxi...

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

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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. What are periodical changes ?

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

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

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  9. classify the following processes into physical changes or chemical c...

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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 Galvanisation? Explain its importance.

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

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

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  14. Describe what changes occur in a chemical change.

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  15. How do you make crystallization of urea?

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  16. What is crystallization? How do you make crystallization of copper sul...

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  17. Think about the following changes and decide whether they are physical...

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  18. Do copper articles get rust? When rusting becomes faster? What change ...

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  19. How can you say that rusting is a chemical change? What factors are fa...

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  20. What are the methods you suggest to prevent the rusting of iron?

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