But how much do you know about it? Do you know where it comes from? Or how it gets to the tap? What about how water's made safe to drink? Or the best ways to conserve it?
Whatever you'd like to know about this incredible natural resource, this website is your fun, interactive guide to water, brought to you by Dŵr Cymru Welsh Water.
In just a few clicks, you'll discover the vital role water plays in our everyday lives. For teachers and parents, we've put together a wealth of interesting information and resources all linked to the national curriculum, and developed with educational experts, to stimulate and educate the curious minds of Key Stage 2 pupils.
For pupils, we've a host of exciting, interactive games, free downloads, links to other water websites and so much more. all designed to take you on a wonderful journey of discovery that you'll never forget. So what are you waiting for?
Share your pledge with us by Clicking here.