3rd Grade ICSE

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09. Water As A Resource

Key Terms

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Last edited 37 days ago by Learn LoopHQ.

Chapter: 09. Water As A Resource

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Water: An important resource on Earth that we cannot live without.

Liquid: One of the three forms in which water exists.

Solid: One of the three forms in which water exists, such as ice.

Gas: One of the three forms in which water exists, such as water vapour.

Universal Solvent: A property of water, meaning it can dissolve many substances.

Evaporation: The process in which a liquid changes into vapour (gas) upon heating.

Condensation: The process in which a gas changes into a liquid upon cooling.

Water cycle: The continuous cycle by which water circulates through the processes of evaporation, condensation, and precipitation.

Precipitation: The falling of any form of water (rain, snow, etc.) onto the Earth.

Insoluble impurities: Impurities that are not dissolved in water and can be seen easily.

Soluble impurities: Impurities that are dissolved in water and cannot be seen easily.

Germs: Very tiny, harmful living organisms that cannot be seen but can cause diseases.

Potable water: Water that is fit for drinking.

Waterborne diseases: Diseases like cholera, typhoid, and dysentery that are caused by harmful living organisms in water.

Waterworks: A place where water is purified and made drinkable before being supplied to homes.

Chlorination: The process of purifying drinking water with the help of chlorine tablets.

Rainwater harvesting: The collection and storage of rainwater for future use.

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