2. Physical and Chemical Changes

Sections

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1. 1

   Physical Changes

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   Physical changes are alterations that do not create new substances and are...

2. 1.1

   Definition

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   This section defines physical and chemical changes, highlighting their...

3. 1.2

   Key Features Of Physical Changes

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   Physical changes involve alterations in physical properties without forming...

4. 1.3

   Examples Of Physical Changes

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   This section provides an overview of physical changes, highlighting their...

5. 1.4

   Activity: Melting Of Ice

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   The melting of ice exemplifies a physical change where no new substance is...

6. 1.5

   Conclusion

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   This section summarizes the essential points regarding physical and chemical...

7. 2

   Chemical Changes

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   Chemical changes involve the formation of new substances with properties...

8. 2.1

   Definition

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   This section defines physical and chemical changes, highlighting the key...

9. 2.2

   Key Features Of Chemical Changes

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   Chemical changes involve the formation of new substances with different...

10. 2.3

    Examples Of Chemical Changes

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    This section discusses various examples of chemical changes, highlighting...

11. 2.4

    Signs Of A Chemical Change

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    This section describes the signs indicating a chemical change, including...

12. 2.5

    Activity: Rusting Of Iron

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    This section explores the rusting of iron as a chemical change, defining its...

13. 2.6

    Conclusion

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    This section summarizes the distinctions between physical and chemical...

14. 3

    Differences Between Physical And Chemical Changes

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    This section explores the distinctions between physical and chemical...

15. 4

    Common Chemical Changes In Daily Life

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    Chemical changes such as rusting, crystallization, and combustion are common...

16. 4.1

    Rusting Of Iron

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    Rusting of iron is a chemical change that occurs when iron reacts with water...

17. 4.2

    Prevention Of Rusting

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    The section discusses methods to prevent rusting of iron, emphasizing the...

18. 4.3

    Crystallization

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    Crystallization is a key physical process used for purifying solid...

19. 4.4

    Burning Of Substances (Combustion)

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    The section on combustion explains the process of burning substances,...

20. 5

    Additional Activities

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    The section presents activities that demonstrate both physical and chemical...

21. 5.1

    Activity: Burning Of A Candle

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    This section explores the burning of a candle, highlighting both physical...

22. 5.2

    Activity: Mixing Vinegar And Baking Soda

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    This section discusses the chemical reaction when vinegar is mixed with...

23. 6

    Summary

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    This section summarizes physical and chemical changes, highlighting their...