Multimedia Gallery. Park Passes. Technical Announcements. Employees in the News. Emergency Management. Survey Manual. Water is indeed essential for all life on, in, and above the Earth. This is important to you because you are made up mostly of water. Find out what water does for the human body.
Think of what you need to survive, really just survive. Naturally, I'm going to concentrate on water here. According to H. Each day humans must consume a certain amount of water to survive. Of course, this varies according to age and gender, and also by where someone lives.
Generally, an adult male needs about 3 liters 3. All of the water a person needs does not have to come from drinking liquids, as some of this water is contained in the food we eat.
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Skip to main content. Search for free courses, interactives, videos and more! Free learning from The Open University. At high temperatures and pressures, like those in the interior of giant planets, scientists think that water exists as ionic water in which the molecules break down into a soup of hydrogen and oxygen ions, and at even higher pressures as superionic water in which the oxygen crystallizes but the hydrogen ions float around freely within the oxygen lattice.
There are many interesting facts about water. Water is a tasteless, odorless liquid. The natural color of water and ice is slightly blue, although water appears colorless in small quantities. Ice also appears colorless, and water vapor is essentially invisible as a gas. Since the water molecule is not linear and the oxygen atom has a higher electronegativity than hydrogen atoms, water carries a slight negative charge.
Curious Kids is a series for children. Send your question to curiouskids theconversation. Hi Clara. Unfortunately, it is not that easy. Read more: Curious Kids: where do clouds come from and why do they have different shapes? Atoms bonded together form molecules. A molecule of pure water is made of two hydrogen atoms bonded to an oxygen atom. As explained in a previous Curious Kids article , scientists think the water on Earth may have come from the melting of water-rich minerals during the formation of the planet and icy comets that, billions of years ago, smashed into Earth and melted.
The reaction is expensive, releases lots of energy, and can cause really massive explosions. While the total volume of water on Earth stays about the same, water continually changes location and state.
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