Water

"Harry's heart gave a huge leap every time he saw the word 'water' on a page, but more often than not it was merely 'Take two pints of water, half a pound of shredded mandrake leaves, and a newt...'"

- Harry searches for references to water, hoping for help on the Second Task of the Triwizard Tournament.

Water is a colourless, odourless molecule consisting of two atoms of hydrogen and one of oxygen. Regular consumption of water is vital to the survival of humans and most other than living organisms, and it has a number of other practical uses, including its use in bathing and cooking. It most often appears in liquid form, but at high temperatures becomes a vapour, and when chilled becomes either ice, or snow when falling as precipitation. Water can be found in large amounts in, such as the Black Lake, or in oceans, in which it takes the form of salt water.

In the Wizarding world, water has a number of applications, such as its use in Potions and it can be produced at will using magic.

History
In 1995, while searching for information that would help him survive the Second Task of the Triwizard Tournament, Harry Potter searched books feverishly for references to "water," but generally found unhelpful information such as Potions suggestions with phrases like "take two pints of water..."

Later that year, the cauldron that was used in the Rebirth of Tom Riddle was said to be filled with what appeared to be water.

Water-based magic

 * Water-Making Spell
 * Snowflake-creating spell

Appearances

 * Harry Potter and the Philosopher's Stone
 * Harry Potter and the Philosopher's Stone (film)
 * Harry Potter and the Philosopher's Stone (video game)
 * Harry Potter and the Chamber of Secrets
 * Harry Potter and the Chamber of Secrets (film)
 * Harry Potter and the Chamber of Secrets (video game)
 * Harry Potter and the Prisoner of Azkaban
 * Harry Potter and the Prisoner of Azkaban (film)
 * Harry Potter and the Prisoner of Azkaban (video game)
 * Harry Potter and the Goblet of Fire
 * Harry Potter and the Goblet of Fire (film)
 * Harry Potter and the Goblet of Fire (video game)
 * Harry Potter and the Order of the Phoenix
 * Harry Potter and the Order of the Phoenix (film)
 * Harry Potter and the Order of the Phoenix (video game)
 * Harry Potter and the Half-Blood Prince
 * Harry Potter and the Half-Blood Prince (film)
 * Harry Potter and the Half-Blood Prince (video game)
 * Harry Potter and the Deathly Hallows
 * Harry Potter and the Deathly Hallows: Part 1
 * Harry Potter and the Deathly Hallows: Part 1 (video game)
 * Harry Potter and the Deathly Hallows: Part 2
 * Harry Potter and the Deathly Hallows: Part 2 (video game)
 * The Tales of Beedle the Bard (real)
 * Harry Potter: A Pop-Up Book
 * LEGO Harry Potter: Building the Magical World
 * LEGO Harry Potter: Characters of the Magical World
 * LEGO Harry Potter: Years 1-4
 * LEGO Harry Potter: Years 5-7
 * Harry Potter and the Deathly Hallows: Motorbike Escape
 * Harry Potter LEGO Sets
 * Pottermore
 * Harry Potter Trading Card Game
 * Wonderbook: Book of Spells
 * Harry Potter for Kinect