[ays_quiz id=”112″]

Class 6 → Science → Chapter 8: A Journey through States of Water

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I. Chapter Summary:

The chapter A Journey through States of Water explains how water exists in three different states—solid (ice), liquid (water), and gas (water vapour). It describes how water changes from one state to another due to heating and cooling processes such as melting, freezing, evaporation, condensation, and boiling. Students also learn about the water cycle and the importance of water in daily life. This chapter builds a clear understanding of changes in matter.

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II. Key Concepts Covered:

1. States of Water

• Solid: Ice
• Liquid: Water
• Gas: Water vapour

2. Change of State

Water changes state due to temperature changes.

3. Melting

Change of solid (ice) into liquid (water).

4. Freezing

Change of liquid into solid.

5. Evaporation

Change of liquid into gas at any temperature.

6. Condensation

Change of gas into liquid.

7. Boiling

Rapid conversion of liquid into gas at a fixed temperature.

8. Water Cycle

Continuous movement of water in nature.

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III. Important Questions:

(A) MCQs (1 Mark):

1. Ice is the ______ state of water.
   (a) Liquid
   (b) Solid ✅
   (c) Gas
   (d) Plasma
2. Evaporation is the change from:
   (a) Solid to liquid
   (b) Liquid to gas ✅
   (c) Gas to liquid
   (d) Solid to gas
3. Condensation forms:
   (a) Ice
   (b) Water vapour
   (c) Liquid water ✅
   (d) Steam
4. Boiling occurs at:
   (a) Any temperature
   (b) Fixed temperature ✅
   (c) Low temperature
   (d) Zero temperature

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IV. Short Answer Questions (2/3 Marks):

1. What are the three states of water?
2. Define evaporation.
3. What is condensation?
4. Explain melting with an example.

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V. Long Answer Questions (5 Marks):

1. Explain different states of water.
2. Describe the water cycle.
3. Explain processes of evaporation and condensation.
4. Discuss importance of water in daily life.

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VI. HOTS Questions:

1. Why do wet clothes dry faster in sunlight?
2. How does the water cycle maintain balance in nature?

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VII. Key Formulas/Concepts:

Change of State Concept

Solid → Liquid → Gas 

Water Cycle Concept

Evaporation → Condensation → Precipitation 

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VIII. Deleted Portions (CBSE 2025–2026):

No portions have been deleted from this chapter as per the rationalized NCERT textbooks.

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IX. Chapter-Wise Marks Bifurcation (Estimated – CBSE 2025–2026):

Unit/Chapter	Estimated Marks	Type of Questions Typically Asked
A Journey through States of Water	5–7 Marks	MCQs, Short Answer, Concept-based

Note: This is an estimate. Actual marks distribution may vary.

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X. Previous Year Questions (PYQs):

1 Mark:

• Name states of water. (2019)

2/3 Marks:

• Define evaporation. (2020)
• What is condensation? (2021)

5 Marks:

• Explain water cycle. (2022)

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XI. Real-World Application Examples:

• Drying of clothes
• Formation of clouds
• Rainfall
• Boiling water for cooking

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XII. Student Tips & Strategies for Success:

Time Management:

• Revise concepts regularly.

Exam Preparation:

• Learn definitions clearly.
• Practice diagrams (water cycle).

Stress Management:

• Study step-by-step.
• Take breaks while studying.

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XIII. Career Guidance & Exploration:

• Science Stream: Environmental Science, Meteorology
• Commerce Stream: Water resource management
• Arts Stream: Geography

Entrance Exams (Basic Awareness):

• NEET
• Environmental science exams

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XIV. Important Notes:

• Understand state changes clearly.
• Practice diagrams regularly.
• Focus on concepts.
• Refer to NCERT textbook.
• Revise frequently.