Some Properties of Water

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The three states of water are solid (ice), liquid (water), and gas (water vapour or steam). Ice is hard and cold, water flows, and steam is invisible gas we see as mist when boiling.

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When ice is heated, it melts and changes into liquid water. This process is called melting. For example, ice in a glass turns into water after some time in the sun.

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Evaporation is when water changes into vapour or gas due to heat. For example, wet clothes dry in the sun because water evaporates into the air.

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Condensation is when water vapour cools and changes back into liquid water. For example, water droplets form on the outside of a cold glass.

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Freezing is when water is cooled to 0°C and turns into ice. This is also called solidification. For example, water in a freezer becomes ice cubes.

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Water takes the shape of its container because it is a liquid. For example, in a cup it is cup-shaped, in a bottle it is bottle-shaped.

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Water is colourless, tasteless, and has no smell. It has no fixed shape and can exist as solid (ice), liquid (water), or gas (steam).

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A solution is a mixture where one substance dissolves in another. For example, sugar dissolves in water to make sugar solution.