Sparkling Water

<p><b>Carbonated water</b> (also known as <b>club soda</b>, <b>soda water</b>, <b>sparkling water</b>, <b>seltzer water</b>, or <b>fizzy water</b>) is <a href="http://en.wikipedia.org/wiki/Water" title="Water">water</a> into which <a href="http://en.wikipedia.org/wiki/Carbon_dioxide" title="Carbon dioxide">carbon dioxide</a> gas under pressure has been dissolved, a process that causes the water to become <a href="http://en.wikipedia.org/wiki/Effervescence" title="Effervescence">effervescent</a>.</p>

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<a href="http://en.wikipedia.org/wiki/Carbonation" title="Carbonation">Carbonated</a> water is the defining ingredient of carbonated <a href="http://en.wikipedia.org/wiki/Soft_drink" title="Soft drink">soft drinks</a>. The process of dissolving carbon dioxide in water is called carbonation.</p>