A Journey through States of Water — Important Questions

Drying of wet clothes, Water disappearing from puddles, Sweat drying from our body

Drying of wet clothes, water disappearing from puddles, and sweat drying are all examples of evaporation where liquid water changes to water vapour. Ice melting is a solid to liquid change, and dew formation involves condensation.

High temperature, Large exposed surface area, Wind or air movement

High temperature, large exposed surface area, and wind all increase the rate of evaporation. High humidity and cold temperature slow down evaporation.

Water evaporates through the pot walls causing cooling

Water seeps through the porous walls of an earthen pot and evaporates. Evaporation requires heat energy, which is taken from the remaining water, making it cooler.

Spread out to fill available space, Can flow, Are invisible

Gases like water vapour spread out to fill all available space, can flow, and are usually invisible. They don't have fixed shape or volume.