Water is a chemical substance composed of two hydrogen atoms covalently bonded to one oxygen atom, represented by the chemical formula H₂O. It is a transparent, odorless, tasteless liquid at room temperature and is essential for all known forms of life. Here are some key characteristics and aspects of water: 1. **States of Matter**: Water naturally occurs in three states—liquid (water), solid (ice), and gas (water vapor or steam), depending on temperature and pressure.

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Water by Ciro Santilli 37 Updated +Created
"Water" is the name for both:
Figure 2.
Ball-and-stick model of a water molecule
. Source.
Figure 3.
Simplified phase diagram of water
. Source. Note the triple point and critical point visible. Phase diagrams are so cool!
Figure 4.
Phase diagram of water
. Source. Note all the obscure phases of ice.
water by John Smith 0 Updated +Created
Water by Donald Trump 29 Updated +Created
This is a section about Water!
Water is a very important subject about which there is a lot to say.
For example, this sentence. And then another one.
Water by Barack Obama 11 Updated +Created
This is a section about Water!
Water is a very important subject about which there is a lot to say.
For example, this sentence. And then another one.