Science Class 6 MCQ Chapter 8 Curiosity Advertisement 1. What is the process of water vapour turning into tiny water droplets called?FreezingCondensationEvaporationMeltingQuestion 1 of 182. What happens when water is heated beyond its boiling point?It turns into iceIt turns into steamIt turns into rainIt stays as waterQuestion 2 of 183. Why do wet clothes dry faster on a windy day?Wind slows evaporationWind carries water vapour awayWind turns water into iceWind condenses waterQuestion 3 of 184. What is the process by which ice turns directly into water vapour?MeltingEvaporationSublimationFreezingQuestion 4 of 185. What is the cooling effect of evaporation caused by?Release of heat Absorption of heatCompression of airCondensation of vapourQuestion 5 of 186. What process converts liquid water into solid ice?MeltingEvaporationFreezingCondensationQuestion 6 of 187. What type of heat energy is absorbed by water during evaporation?Kinetic energyThermal energyChemical energyPotential energyQuestion 7 of 188. Which factor slows down the process of evaporation?Low humidityHigh temperatureHigh humidityHigh wind speedQuestion 8 of 189. Water droplets forming on plants in the early morning are an example of:CondensationEvaporationFreezingMeltingQuestion 9 of 1810. Which of the following helps in the formation of clouds?FreezingEvaporationCondensationMeltingQuestion 10 of 1811. What process occurs when water boils?MeltingCondensationEvaporationFreezingQuestion 11 of 1812. Which of the following is a natural process that returns water to Earth’s surface?MeltingEvaporationPrecipitationSublimationQuestion 12 of 1813. What happens to the volume of water when it freezes into ice?It increasesIt decreasesIt stays the sameIt evaporatesQuestion 13 of 1814. Why does condensation happen more on cold surfaces?Because cold surfaces release heatBecause cold surfaces absorb waterBecause water vapour cools and turns into liquidBecause cold surfaces expandQuestion 14 of 1815. How does water reach the atmosphere in the water cycle?Through condensationThrough evaporationThrough precipitationThrough freezingQuestion 15 of 1816. What is the key factor in the formation of hail or snow?EvaporationHigh temperatureCooling of water vapourAbsorption of heatQuestion 16 of 1817. What happens when water evaporates from an open container?The water level risesThe water level stays the sameThe water level decreasesThe water freezesQuestion 17 of 1818. What happens to water vapour in the air when it touches a cold surface?It freezesIt evaporatesIt condenses into water dropletsIt expandsQuestion 18 of 18 Loading...
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