Class 6 Science Chapter 8, A Journey through States of Water, starts with Aavi and Thirav debating ice cubes in summer shikanji and explores evaporation, condensation, solid/liquid/gas states of water, melting, freezing, factors affecting evaporation, cooling by evaporation, clouds and the water cycle.
What Class 6 Science Chapter 8 Covers
8.1–8.4 Disappearing Water, Condensation & States of Water investigates why puddles dry up via evaporation (8.1) and why water droplets form outside an ice-cold glass via condensation of atmospheric water vapour and humidity (8.2), then compares ice (solid), water (liquid) and steam/water vapour (gas) and their interconversion by heating (melting, evaporation) and cooling (condensation, freezing) (8.3–8.4).
8.5–8.7 Faster Evaporation, Cooling Effect & Water Cycle experiments with how exposed surface area, sunlight/temperature, wind speed and humidity change the rate of evaporation (8.5), explains evaporative cooling in earthen matkas and surahis (8.6), and traces how rising water vapour condenses around dust particles to form clouds, rain, hail or snow in the water cycle (8.7).
Water Cycle Animation
Watch the four stages this chapter describes: water evaporating off the sea, vapour condensing into a cloud, the cloud raining onto the hills, and a river carrying the water back to the sea. Press Pause or drag the slider to stop on any stage.
Exercises in Chapter 8
- Summary key points, Keywords, and Let us enhance our learning chapter exercises.
- Learning further hands-on projects and inquiry activities.
Read Class 6 Science Chapter 8 Online
More Chapters
- Previous: Chapter 7: Temperature and its Measurement
- Next: Chapter 9: Methods of Separation in Everyday Life
- Hindi medium: Class 6 Science Chapter 8 PDF in Hindi (Jigyasa)
- All Science chapters and the other Class 6 books: Class 6 NCERT books 2026-27
- All Class 1 to 12 NCERT Textbooks: NCERT Books PDF (Class 1–12)
FAQ
Why do water droplets appear on the outer surface of a glass containing ice-cold water?
Water vapour present in the surrounding air cools down on touching the cold outer surface of the glass and condenses into tiny liquid water droplets.
Why does water kept in an earthen pot (matka) become cool in summer?
Water seeps through the tiny pores of the earthen pot and evaporates from the outer surface, absorbing heat from the pot and the water inside, which produces a cooling effect.