Water, the most abundant compound on the planet, is a material, which
is essential for all living organisms. Its uses in all living things
cover a huge variety of everyday functions, which are important to the
continuity of the organism. Water has obvious familiar properties, its
colourless; It's tasteless; It's odourless; It feels wet; It's
distinctive in sound when dripping from a faucet or crashing as a
wave; It dissolves nearly everything; It exists in three forms:
liquid, solid, gas; It can absorb a large amount of heat; It sticks
together into beads or drops; It's part of every living organism on
the planet.
Water's unique properties are largely a result of its simple
composition and structure. Water is composed of two hydrogen atoms
bound to one oxygen atom. The two hydrogen atoms are smaller the
smallest atom there is, in fact, and they rest on both sides of the
larger oxygen atom at an angle of 105°. When the hydrogen atoms
combine with oxygen, they each give away their single electron and
form what is known as a covalent bond. Because electrons are more
attracted to the positively charged oxygen atom, the two hydrogen's
become slightly positively charged (they give away their negative
charge) and the oxygen atom becomes negatively charged. This
separation between negative and positive charges creates what is known
as a polar molecule, meaning a molecule that has an electrical charge
on its surface somewhere. Although the water molecule as a whole has
no charge, the parts of it, the hydrogen wings and the oxygen body, do
exhibit individual charges.
The polarity of water allows it to join with other molecules,
including itself. Water molecules can form hydrogen bonds, which give
shape to water as a whole. Water has a high surface tension(Fig 2).
The ability of water molecules to quickly break and re-form hydrogen
bonds gives it a property called cohesion. Water's high amount of
cohesion makes it "sticky" such that across the air-water interface, a
When in solution, the hydronium and chloride ions formed will be partially surrounded by water molecules via ion-dipole bonds, an electrostatic force of attraction that exists between charges in the ions and the partial charges in the water molecules. Water molecules surrounding ions is called hydration.
Water is the life blood of every living creature on earth. Approximately 70 percent of the earth's surface is covered with water. Through the wonders of nature, water can take on many different forms. It is easy to understand the significance water plays in our lives, but it may be difficult to understand the water that exists below the earth's surface. This water is called groundwater.
As brackish water lapped against the shoreline, a wooden fort towered shielding the sick and the dead. Natives lurk in the shadows waiting to strike and relations amongst the colonist was stressful. What is happening? In 1606, Jamestown, Virginia 104 men sailed up the chesapeake bay in search of land and gold. But in this new land these men were not ready to face the challenges ahead.
Drinking water is one of our basic needs in order to survive, therefore the water that we drink and cook with must be of a high quality, and filtered of any harmful contaminants.
The Biological Importance of Water as a Solvent and as a Medium for Living Organisms
As the sustenance for all humankind, animals, plants and other living organisms, Water is the greatest natural resources on this planet and it is becoming scarcer and more of a necessity. Water is a basic need and not a want in the same way that without air to breathe, cannot sustain life. Safe, clean water and good sanitation is a right. Therefore, the right to safe, clean water means the right to life. According to United Nations human rights are rights inherent to all human beings, whatever our nationality, place of residence, sex, ethnic origin, color, religion, language or any other status. Based on UN definition I am confident to assert that safe, clean drinking water and good sanitation is a basic human
Water has a great number of roles in living organisms, this is largely to do with the structure and covalent bonding in a single water molecule, and between water molecules. Around 75% of the earth is covered in water, and it is reffered to as the most important Biochemical. Its chemical symbol is: H2O In a water molecule there are two bonding pairs and two non-bonding pairs of electrons. These four pairs of electrons repel one another, forming a tetrahedral pattern.
“Drinking water is like washing out your insides. The water will cleanse the system, fill you up, decrease your caloric load and improve the function of all your tissues.” – Kevin R. Stone --
Water is the most important substance in our evolution and our daily lives. Without water,
Water is the most vital part of life. Water is needed from humans, to plants and other organisms, and to do basically everything. Water allows our bodily functions to work and to remove waste from our bodies. Plants need water to grow, and humans need plants to gr...
Clean Water: “An under-appreciated liquid to Survive” Water is pure and transparent liquid that is vital for all humans, plants and animals on the planet. In the United States, people have access to clean drinking water and clean sanitation systems, not like in other parts of the world where clean, safe drinking water is getting scarce. A lot of people don’t have access to it, and many regions are suffering severe drought. Yet, when humans take it for granted, they don’t appreciate that a reliable, clean supply of water is essential to human health, economy and agricultural prosperity. Having clean and safe potable water is a right, and not a privilege.
Water is the most priceless resource on our planet. Billions of gallons flow through our rivers and lakes. Millions of gallons are consumed by humans each day. Our world’s surface is seventy percent water. With so much water around us, how can 1.1 billion people still lack access to clean water (Cooper, Water Shortages)? People are already using fifty four percent of all the freshwater available on this planet (Cooper, Water Shortages). We cannot afford to neglect something so essential to our very survival. We must defend our most important natural resource—water.
The importance of water to living organisms originates from its many properties including its solvent properties, its high specific heat. capacity, its high latent heat vaporization, its surface tension. its density and freezing properties, its transparency and its colloid. formation. The sym Water has been called a universal solvent and its properties as a solvent depends on the fact that it is a polar molecule.
Water is an essential nutrient that our body requires every day. Without water human life cannot be sustained. Water deprivation kills faster than lack of any other nutrient. People do not think of water as a nutrient and don’t realize the important role of water in the body functions.
Water covers about seventy one percent of Earth’s surface. Earth is the only planet to have stable bodies of liquid water on its surface which is crucial for all known life forms. Water is a substance which acts as a solvent in which organic compounds can mix, and it is the substance which is thought to be necessary to facilitate the formation of life. There are many forms of water which include ice, liquid, and gas. Because water can exist as a gas, it can be stored in the atmosphere and be delivered as precipitate. Water also helps regulate the climat...