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Water is Essential to Life

Water is the most important substance in our evolution and our daily lives. Without water, life as we know it would not have been possible. It's important to understand and examine the water molecule in order to ascertain how it brought about Earth's thriving ecosystem and how important it is for us today.

Water is a strong solvent, it's a very unique molecule that can breaks and reforms constantly. Each water molecule consists of one oxygen atom and two hydrogen atoms. The oxygen atom also called the "apex of the water molecule" bears a slight electronegative charge while hydrogen possesses a more positive one (Kirk 225). Because of the opposite charges attract, the water molecules are drawn together. When an oxygen atom is linked to a molecule's hydrogen atom, a bond called a hydrogen bond is formed (Kirk 256).

There are several types of water molecule such as liquid water, ice and water vapor. These are all as important as we need in our daily lives. In a liquid form of water it has no such spaces because hydrogen bonds constantly breaks and reforms. Thus ice is stable hydrogen bonds that bonded together, it's less dense and will float on liquid water. If it's not this reason, the great bodie


Water is a very small molecule that has its own unique properties therefore it behaves like a larger one. The bonds between water molecules are the covalent bonds; these bonds are so strong that water resists changes in its state. For example, solid, liquid and gas. Thus water has a higher melting point and a higher boiling point than any other molecule of similar size (Kirk 256).

All plant life on Earth benefits from the ability of water to make a hydrogen bond with another substance of similar electronegative charge. Cellulose, is the substance that makes up cell walls and paper products, it is a hydrophilic substance also known as the "water-loving". This substance interacts with water but it will not dissolve in it, unlike other hydrophilic substances. Cellulose can also form strong hydrogen bonds with water molecules. This explains why a paper towel will "wick" water upwards when it comes in contact with it. Each water molecule will make a hydrogen bond with cellulose and pull another water molecule up from down below and so on (Kirk 259). Without this feature plants would find it more difficult to transport water up their stems to the leaves in order to make food through photosynthesis. T

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Approximate Word count = 811
Approximate Pages = 3 (250 words per page double spaced)


  

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