• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month
Page
  1. 1
    1
  2. 2
    2
  3. 3
    3
  4. 4
    4
  5. 5
    5
  6. 6
    6
  7. 7
    7
  8. 8
    8
  9. 9
    9
  10. 10
    10
  11. 11
    11
  12. 12
    12
  13. 13
    13
  14. 14
    14
  15. 15
    15
  16. 16
    16
  17. 17
    17

ESS Assess lab

Extracts from this document...

Introduction

MODEL ASSESS LAB 3 Name - Siddhant Nahta Subject - ESS SL2 GR no. - 302 Date -11th October 2008 Environmental Conditions & Location Site: Kaneri Caves , Sanjay Gandhi National Park , Mumbai Time: 8.00 am to 1.00 pm Temperature: At Foothill: Soil temperature is 27.9�C. Air temperature is 31.4�C. Adjacent to the pond: Soil temperature is 27.8�C. (mid altitude) Air temperature is 33.5�C. 1) SOIL TEXTURE Aim : Physiochemical evaluation of soil at different altitudes of the Kaneri Caves at Sanjay Gandhi National Park , Borivali , Mumbai. Data Collection : The following are the details of the soil at a particular location subdivided into foothill and pond habitat. At Foothill: Initial Weight of Soil: 10g Dry Weight of Soil : 8.639g At habitat adjacent to the pond (mid altitude) : Initial Weight of Soil : 10g Dry Weight of Soil : 7.548g Data Processing : The data processing was successful with the help of a laboratory kit so as to find the nitrate and phosphate content in the soil. At Foothill : Moisture content = Initial wt. - Dry wt. = 10g - 8.639g = 1.361g of moisture/10g of soil Nitrate Content = 15 ppm ?? ...read more.

Middle

25 x ( 125 - 2) (125) = 4.552 mgO2/ltr Conclusion : After going through data collection and processing I have come to this conclusion that the measure of dissolved oxygen in the 3 water samples are in this pattern. D.O in Source 3 > D.O in Source 2 > D.O in Source 1 There is peculiar observation that has made me conclude that (in this case) , as there is an increase in the height of altitude , the level of dissolved oxygen has decreased . Evaluation : It was mandatory for me to keep some measures in mind before performing the experiment as there are certain errors that can cause a hindrance in the functioning as well as in the readings during the experiment � The water in the B.O.D bottle may not reach up to the brim of the bottle because of which there would be an introduction of an air bubble into the bottle and would give the wrong readings. To get rid of such an error , I poured the water slowly and steadily from the sides of the bottle so as to stop the entrance of the air buuble. ...read more.

Conclusion

Evaluation : While forming this experiment there could have been certain errors which could have hampered the flow of the experiment or would have affected the readings or the species count in the quadrat. �The roots of the plant species may be fixed in 1 quadrat and its shoots or off-shoots would appear in another quadrat. Anyone could get deceived by this , I was really attentive while performing this experiment. It is necessary to count the plant species according the position of their root in the quadrat and should not be included in the quadrat in which it's shoot appears. �Some of the plant species are in their early growing stages hence they would be covered by the plant species that have already matured and grown. So it is mandatory to look in between the plant species to search for the young plant species. �Few of the plant species , like the dead leaves or the dead flowers on the ground or on the plants which may not be alive should not be included while counting those particular plant species. � Accidentally stamping the plants within the quadrat, or sometimes when it's shoots are jutting out of the quadrat can alter the count of the plant species ,so it is necessary to be careful while performing such a delicate experiment. ...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 Misc 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 Misc essays

  1. English A1 HL - Detailed Plan & Commentary on Planting a Sequoia

    Although the poem never actually states that the speaker is the father and not the mother, it is safe to conclude that it is indeed the father as it is the father who plants the tree in the Sicilian tradition.

  2. To what Extent Does Government Know What is Best for its Subjects? (Stimulus: Antigone)

    Rather, Mill argues that individuals themselves know what is in their own best interests. Mill emphasizes that individually made (as opposed to state-directed) choices are best simply because 'it is his own mode.' [p.77] By this, Mill meant that due to the multitude of uniqueness among humans ('human beings are

  1. Yellow Raft in Blue Water Analysis

    Christine's self-doubt leads to her alcoholism need for dependence, and submission. Christine takes on idea's struggle with self-identity, though instead of ignoring them, she (though somewhat irrationally) strives to take them head-on. Because of Rayona's mother's lack of dependability, her father's deficiency of presence, she is torn between personal identity and the acceptance of others.

  2. According to the standards within the Ln Yu, has the Confucian gentleman survived to ...

    defining characteristic of "the gentleman" have no precise definition, thus some verses from the Lun Y� must be observed. First, it is to be established that the Confucian "Gentleman" practiced the following: self-respect, generosity, sincerity, persistence, and benevolence (Zukeran, 2002).

  1. A comparison and analysis of the speed and efficiency between Microsofts Windows XP and ...

    Internet Explorer) and printing speed. Windows XP Macintosh OS X Tiger System name Dell OptiPlex 755 Apple iMac 4.2 OS version XP Service Pack 2 Tiger 10.4.2 Front Side Bus (FSB) 800MHz 400MHz CPU Speed 2.0GHz 1.8GHz Hard Drive 160 GB 160 GB RAM 1 GB 512 MB Processor Intel

  2. Extended Essay: How do different Flavours, Storage Times affect the Effectiveness of Crisps as ...

    scraping off almost all ashes from this plate to weigh the plate itself. Qualitative Observations and Control Variables Table 1. Qualitative Observations Flame soon enlarges (max height about 20 cm) Lots of soot (sooty flame, sooty soda can) Oil leaked out of crisp at parts near the burning parts Lots

  1. Name of the Rose Analysis Questions

    One being a biblical allusion in the Old Testament concerning the symbolism of pig's blood. In Deuteronomy 14:4 it speaks of the consumption and touch of the meat and blood of a pig as being unclean. A comment towards the blood is made when Vanantius' body was being removed from

  2. World Lit Assignment 1

    Although Creon berates the messenger for being paid off, this key event displays Creon's motivation for action in threatening to punish the sentry for the crime. Creon's strong belief that the sentry was bribed is what angers him and motivates him to give the sentry a more fervent reason to find the real perpetrator.

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