But the hidden qualities of water make it a most interesting subject. As the diagram to the left shows, that is one atom of oxygen bound to two atoms of hydrogen. All these water molecules attracting each other mean they tend to clump together. Even if it doesn't form a perfect sphere on Earth, we should be happy water is sticky. This means that wherever water goes, either through the ground or through our bodies, it takes along valuable chemicals, minerals, and nutrients.
Pure water has a neutral pH .
Pure water has a pH, of about 7, which is neither acidic nor basic . Earth's water is constantly interacting, changing, and in movement . Water is unusual in that the solid form, ice, is less dense than the liquid form, which is why ice floats. Water has a high specific heat index. This means that water can absorb a lot of heat before it begins to get hot.