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[[Category: Physics]][[Category: Biology]] | [[Category: Physics]][[Category: Biology]] | ||
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== Explanation == | == Explanation == | ||
Water is a chemical compound essential for [[life]] on [[Earth]]. It is made up of two [[atom]]s of [[hydrogen]] and [[oxygen]] and chemically written as '''H<sub>2</sub>O'''. When water is heated to its [[boiling point]] 100 °C, it [[boiling|boils]] and turns into [[gas]] called as [[water vapour]] and [[steam]]. When heat is removed from the water, and the temperature is brought down to its [[freezing point]] of 0 °C, it [[crystallization|crystallizes]] to form [[ice]]. On Earth, water occurs in all these three [[phase of matter|phases]] naturally. Water changes through this phases on earth through [[water cycle]]. Besides Earth, water is present universally. | Water is a chemical compound essential for [[life]] on [[Earth]]. It is made up of two [[atom]]s of [[hydrogen]] and [[oxygen]] and chemically written as '''H<sub>2</sub>O'''. When water is heated to its [[boiling point]] 100 °C, it [[boiling|boils]] and turns into [[gas]] called as [[water vapour]] and [[steam]]. When heat is removed from the water, and the temperature is brought down to its [[freezing point]] of 0 °C, it [[crystallization|crystallizes]] to form [[ice]]. On Earth, water occurs in all these three [[phase of matter|phases]] naturally. Water changes through this phases on earth through [[water cycle]]. Besides Earth, water is present universally. |