• 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. Biology Extended Essay 2009

    Referring to Appendix A, the highest price of orange juice is $4.99/2L, for freshly squeezed juice it will cost approximately three times as expensive to produce equal amount of juice. It is also more convenient to buy them from local supermarket than making your own juice.

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

    The N=N group is called an Azo group. Azo compounds are generally seen to have vibrant colours, specially reds, oranges, and yellows. Therefore, they are used as dyes, and are commonly known as Azo-Dyes, an example of which is Disperse Orange 1.

  1. Should Animals have the same rights as Humans? Both animals and humans exhibit behaviours ...

    Then he conditioned the dogs to stop producing saliva in response to a whistle-so the whistle became a conditioned inhibitor. He then experimented to see if he combined the sight rotating object with the tone, whether the tone would still act as an inhibitor.

  2. Penicillin - its discovery, properties and uses.

    About 161-137 BC, soldiers in the army of Sri Lankan in order to make plaster of the oil cakes (a traditional Sri Lankan sweetmeat) to treat wounds, they stored oil cakes for long periods in their hearth lofts before their campaign start.

  1. LAB-What infuences blood pressure

    17,75 61 90 50 90 50 90 50 51,8 1,69 18,14 66 120 70 120 70 120 70 52,8 1,70 18,27 64 120 80 120 80 120 80 53 1,69 18,56 64 136 78 122 72 129 75 54,6 1,70 18,89 70 116 71 115 63 115,5 67 59,9 1,78

  2. extended essay

    These are the questions that not only are asked in the society we live in now, but will continue to be asked for decades as technology will become increasingly more sophisticated. Reproductive technologies In today's society, the use of cloning is seen more often like a commercialized reproduction.

  1. Independent Research Project Vital Lung Capacity

    and their highest recorded data was used to calculate the mean of the experimental group, whether it was the asthmatic participants or the non asthmatic participants. While taking the instrumental uncertainty into account (which was � 0.01) the average of the non asthmatic participant group turned out to be 3.28 liters.

  2. Genetically Modified Organisms Essay

    to reduce the chance of the genetically engineered salmon been interacted with the native salmon and reproducing. The image 1.2 is one of the sanctuaries in the highland of panama been trialed. Then the fish would be transported back to the United States for retail sale.

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