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Concept Maps

Physical and Chemical Changes — Concept Maps

ICSE · Class 8 · Chemistry

4 concept maps of Physical and Chemical Changes for ICSE Class 8 Chemistry, each also written out as a text outline.

43 questions32 flashcards5 concepts

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4 Concept Maps

Overview of Physical and Chemical Changes

Overview of Physical and Chemical Changes

The map in words

  • Changes Around Us
    • Types of Changes
      • Slow vs Fast
        • Slow: Rusting, curd
        • Fast: Cracker burst
      • Natural vs Man-made
        • Natural: Earthquakes
        • Man-made: Cooking
      • Periodic vs Non-periodic
        • Periodic: Seasons
        • Non-periodic: Landslides
      • Reversible vs Irreversible
        • Reversible: Ice to water
        • Irreversible: Burning paper
    • Physical Change
      • No new substance
      • Temporary and reversible
      • No change in mass
      • Examples
        • Melting of ice
        • Sublimation of camphor
        • Dissolving sugar
        • Breaking glass
    • Chemical Change
      • New substance formed
      • Permanent and irreversible
      • Change in mass
      • Energy exchanged
      • Examples
        • Rusting of iron
        • Burning of paper
        • Cooking food
        • Fe plus S to FeS
    • Energy in Changes
      • Exothermic
        • Energy released
        • Burning of wood
      • Endothermic
        • Energy absorbed
        • Photosynthesis

Classification of Changes Around Us

Classification of Changes Around Us

The map in words

  • Types of Changes
    • Based on Speed
      • Slow Changes
        • Rusting of iron
        • Plant growth
        • Fossil formation
      • Fast Changes
        • Lightning
        • Explosion
        • Burning
    • Based on Time Period
      • Periodic Changes
        • Day and night
        • Seasons
        • Moon phases
      • Non-periodic Changes
        • Earthquakes
        • Landslides
        • Epidemics
    • Based on Origin
      • Natural Changes
        • Volcano eruption
        • Weather change
        • Tree growth
      • Man-made Changes
        • Cooking food
        • Steel formation
        • Building construction
    • Based on Nature
      • Physical Changes
        • State change
        • Shape change
        • Size change
      • Chemical Changes
        • Combustion
        • Rusting
        • Digestion

Types of Changes – Complete Classification

Types of Changes – Complete Classification

The map in words

  • Changes Around Us
    • Based on Speed
      • Slow Changes
        • Rusting of iron
        • Formation of curd
        • Growth of a child
      • Fast Changes
        • Bursting cracker
        • Switching on bulb
        • Blinking eyes
    • Based on Origin
      • Natural Changes
        • Day and night
        • Earthquakes
        • Growth of trees
      • Man-Made Changes
        • Cooking food
        • Making steel
        • Making jewellery
    • Based on Pattern
      • Periodic Changes
        • Seasons
        • Heartbeat
        • Day and night
      • Non-Periodic Changes
        • Earthquakes
        • Landslides
        • Floods
    • Based on Reversibility
      • Reversible Changes
        • Ice melting to water
        • Wax melting
        • Sugar dissolving
      • Irreversible Changes
        • Burning paper
        • Cooking food
        • Rusting of iron
    • Broad Scientific Categories
      • Physical Changes
        • No new substance
        • Generally reversible
        • No mass change
      • Chemical Changes
        • New substance formed
        • Generally irreversible
        • Energy exchanged

Changes in surrounding substances and materials can be classified as physical changes or chemical changes, along with other common classifications such as slow or fast, natural or man-made, periodic or non-periodic, and reversible or irreversible.

Changes in surrounding substances and materials can be classified as physical changes or chemical changes, along with other common classifications such as slow or fast, natural or man-made, periodic or non-periodic, and reversible or irreversible.

The map in words

  • Changes in surrounding substances and materials can be classified as physical changes or chemical changes, along with other common classifications such as slow or fast, natural or man-made, periodic or non-periodic, and reversible or irreversible.
    • Types of changes
    • Physical changes
    • Chemical changes
    • Reactions and equations
    • Energy changes
    • Candle burning
    • Activities and observations

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Frequently Asked Questions

What are the important topics in Physical and Chemical Changes for ICSE Class 8 Chemistry?
Key topics in Physical and Chemical Changes include Types of Changes, Physical Changes, Chemical Changes, Physical Change and Chemical Change Compared. Study these first, then practise questions on each for Class 8 exams.
What do the concept maps for Physical and Chemical Changes show?
The 4 maps show how the ideas in Physical and Chemical Changes connect: Overview of Physical and Chemical Changes; Classification of Changes Around Us. Each map is also written out as an outline on this page.
How should I revise Physical and Chemical Changes for Class 8 exams?
Learn the core ideas first, then work through the 43 practice questions on Physical and Chemical Changes. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

More resources for Physical and Chemical Changes

All ICSE Class 8 Chemistry Concept Maps

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