All About Water

We use water in everything we do such as cooking, hygiene, swimming, drinking, watering plants, and even fun activities. Organisms are over 80% water and waters properties and the way we use it is very important.  For every oxygen atom there is two hydrogen atoms. Oxgyen is short two electron in its outer shell and hydrogen is short one electron in its single shell and by sharing electrons they complete each others shell and make water.

In class we did an experiment where we would drop water drop by drop onto penny to see how many drops of water would stay on the penny before its bond broke. The water was very adhesive to the penny because it stuck to it well. On the wax paper the water wasn't as adhesive because you could easily move it around. Water is cohesive because although water flows freely the water molecules don't separate. Surface tension allows the water to attract to one another. Its lowest energy state surrounds the area around the molecule and as gravity acts on it it gives us the shape of the sphere that we see.

Water has high surface tension because of its hydrogen bonding. Water striders, insects walking on the surface of water, humans skipping rocks are able to do all this because of this property.