• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Water Essay

Extracts from this document...

Introduction

Eric Chang August 16, 09 IB1 BIO SL Mrs. Sandercock Water Essay Water is the most abundant substance we have on earth and vital to all life forms. It is the very essence and the source of life thus no organisms can live without water. The unique arrangement of polar covalent bond in the atomic level of a water molecule causes the two ends of the molecules to have opposite charges. This allows water to demonstrates unique thermal, cohesive, and solvent properties that contributes to the necessity of water to life. Thermal properties Water possess thermal properties of high heat capacity and high heat of vaporization that are significant to life. ...read more.

Middle

Thus water evaporates slowly from ponds and lakes, where many aquatic life forms are dependent on a stable, warm living environment. Cohesive Properties Water molecules are highly cohesive because of the slightly positive and negative ends the polar covalent bonds creates. The positive ends of the molecules attract to the negative ends of another whenever they are close to each other. This generates surface tension and it is why boats can float on water. Cohesive property is crucial to life because when water freezes , the polar attraction of the water molecule lock into place and ice forms. For this reason, ice is less dense than liquid water so that ice floats instead of sinking. ...read more.

Conclusion

The solvent properties of water is important to life because water is an excellent medium to transport. As mentioned earlier, water carries dissolved nutrients and minerals from the soil up from the roots to the leaves of the plant. In addition, blood is primary composed of water and blood is the most common transport medium the regulates in our body by giving nutrients and taking out waste. Summary Statement Though how water provides all this unique properties are complex but there are no doubts that they are all meant for the benefits of all lives on earth. The fact that only water possess all these properties only emphasize the necessity and importance of water on earth. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our International Baccalaureate Biology section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related International Baccalaureate Biology essays

  1. extended essay

    used without using the reproductive privacy and the un-consented use of ones genome. Critics fear that with the use of reproductive cloning, people throughout the world might abandon what is seen to be normal parenting and rely further on this new form of reproductive technology.

  2. Biology- Extended essay. For this research, I investigated the effects of DDT and ...

    In my experiments DDT will be added to the fish's environment and there direct response would be shown by the difference in their opercular movement. THE TEXTILE INDUSTRY:- The textile printing in Sanganer town, district Jaipur (Rajasthan, India), is famous worldwide for its dyeing and printing industries.

  1. Independent Research Project Vital Lung Capacity

    Also something as simple as the adding of more trials to the experiment for the participant could broaden and better the results when comparing individuals with and without asthma. Another conceivable approach would be to considerably change the variables of the experiment.

  2. Lung Capacity Fitness Level

    The spirometer is able to record the pressure of air, amount of air and rate of air that is inhaled and exhaled over a period of time. In this experiment the spirometer will be used to measure the amount of air that is breathed in and out at maximum volumes of the participants.

  1. Penicillin - its discovery, properties and uses.

    At that time, from the techniques they used, it could be said that they cannot define what component in those food that can remedy illness and did not fully understand the nature of the medicine. Till 1640, John Parkington9, who is a Pharmacist, wrote a book which is about using mould as an antibiotic for treatment.

  2. Rate of heat loss

    * A thermometer was placed inside the test tube and allowed to reach the highest stable temperature. * The stopwatch was started and the temperature was recorded at regular intervals of 1 minute. * Then another test tube was taken and tissue paper was wrapped one by one around it, to cover it with several thin layers.

  1. cell theory summary

    Other unicellular groups include the prokaryotes (Bacteria) which lack a true nucleus. These organisms are able to carry out all the processes which are characteristic of living things such as: a. metabolism which includes respiration the synthesis of ATP. b. response to a change in the environment c. homeostasis the maintenance and regulation of internal cell conditions.

  2. Biology Extended Essay 2009

    Experiment on Vitamin C and sugar content 3.1 Aim 3.2 Method 3.3 Results 3.4 Discussion 4. Loss of nutritional value critical for human body 4.1 Shelf-life 4.2 Thermal processing 5. Additives and its effect on human health 5.1 Preservatives 5.2 Artificial sweeteners 5.2.1 Fructose and glucose study 6.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work