A Journey Through States of Water
About this chapter
A Journey Through States of Water is Chapter 8 of Class 6 Curiosity. Through Aavi and Thirav's observations — ice in shikanji, puddles vanishing, droplets outside a cold tumbler, dew on plants, water cooling in a matka — students see that water exists in three states: solid (ice), liquid (water) and gaseous (water vapour). Key ideas: ice and water are two states of one substance; evaporation turns water into vapour and condensation returns vapour to liquid on cold surfaces; the three states differ in shape, flow and spread; melting and freezing are heat-driven; exposed area, temperature, wind and humidity change the rate of evaporation; evaporation produces a cooling effect that powers the matka, surahi and pot-in-pot cooler; clouds form by condensation around dust particles and fall as rain, hail or snow; and the water cycle links oceans, atmosphere and land. CTET Paper 2 Science tests this through definitions, cause-and-effect reasoning, everyday examples and water-cycle sequencing. The four tests — Practice 15 Q, Quiz 15 Q, Hard 15 Q, Mastery 30 Q — cover these ideas at exam depth.
Tests in this chapter
Build the basics. Single-concept recall and direct application.
Start test → Quiz 15 questions 15 minTest your understanding. Mixed application across the chapter.
Start test → Hard 15 questions 18 minPYQ-grade. Statement-based, assertion–reasoning, two-step problems.
Start test → Mastery 30 questions 30 minFull-chapter mock. Mixed difficulty, no overlap with the other three.
Start test →