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

Plant Science Lab Report

Extracts from this document...

Introduction

Plant Science Lab Report Aim: To study the effect of salt (NaCl) concentration on plant growth Hypothesis: I believe that the plant which has the highest concentration of salt will have its growth affected and the NaCl will cause the plants' size to decrease. In my opinion the plant which will grow is the plant without any salt. This is because plants need salt, but in a small amount unlike humans. Too much salt in a plant can cause the death of the plant. When there is a large amount of salt in a plant, the salt will become toxic. The salt can dehydrate the cells within, causing the plants to die. This happens to more than just one cell. The effect of the salt can cause enough cells to decease, to kill an entire plant. When the cells are dehydrated, the plant turns yellow. Not only cells are affected in this process, the photosynthesis system can also get affected also. ...read more.

Middle

But in the third beaker place 15g of salt and label the plant with the 15g of salt as "C". In the fourth beaker place 20g of salt and label the plant with the 20g of salt as "D" 11- Using the ruler, read the height of each plant daily for seven days Labelled Diagram: Results: No NaCl (a) +or- 0.1 cm 5g of NaCl (b) +or- 0.1 cm 15g of NaCl (c) +or- 0.1 cm 20g of NaCl (d) +or- 0.1 cm Day 1 (no salt) 11.1 10.1 8.2 18.1 Day 2 11.3 10.3 8.4 18.1 Day 3 11.6 10.6 8.7 18.1 Day 4 13.3 10.9 9.1 17.8 Day 5 14.1 10.6 8.5 17.8 Day 6 14.2 10.1 7.9 17.6 Day 7 14.5 9.8 7.8 17.6 Change 3.5 -0.3 -0.4 -0.5 % Change 0.32 -0.03 -0.05 -0.03 Rate 0.5 -0.04 -0.06 -0.07 Data Processing: Conclusion: From the table of results we can clearly see that plant "a" was not affected due to the non existence of salt [NaCl] in it. ...read more.

Conclusion

They might have touched or affected in a way * Due to weekends the calculation of the plant height was not based on a consecutive 7 day period. It was based on 7 days in school which was not consecutive. This may have affected the numbers we have gathered * The method of using the ruler to calculate the height was inaccurate as because it depended on readings by the naked eye * The salt was not spread out evenly onto the plant * To avoid mistakes with the ruler we could use a measuring tape which would give us more accurate results * Place the plants in a safe area were they could not be touched and were they could receive all the factors needed such as sunlight * Take the calculations daily and consecutively by doing the experiment at home instead of leaving it in school on weekend * Separate the soil without harming the plant and use a spray to spray the salt water onto the plant and in order to make the salt spread out evenly ?? ?? ?? ?? Internal Assessment Lab Report Rudain Mahasneh 1 ...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. Marked by a teacher

    Biology: Lab report Germination

    4 star(s)

    I can recollect this from the graph because the very last part of the blue line does not escalate anymore; it is a straight horizontal line. The control seeds fluctuated a bit in the beginning but the overall pattern is steadily upwards.

  2. Vitamin C Lab

    It is hard to determine fully whether or not the lemon juice within the conical flask is decolourised, as the lemon juice itself has its own faint yellow tint. Another reason why our data might be unreliable is because there were instances where the glassware, particularly the conical flasks used

  1. Biology Lab - frequency of cell division in animal and plant cell

    Since tables are very useful when presenting two dimensions of information or viewing the data in an easier way, the raw data was presented in a table format. The raw data was also represented in a pie graph to have clear view of how frequent each stage takes place during the process of mitosis.

  2. Plant Tropism Lab

    - K-3 - - - - - - K-4 - - - - - - K-5 - - - 60 50 85 J-1 - - - - - - J-2 - - - - - - J-3 - - - - - - J-4 - - - - - -

  1. Biology Industrial Melanism of Peppered Moth Lab

    Calculations of the percentages of light-coloured moths and melanic moths left on intermediate-coloured "tree bark". Trial Number Percentage of Melanic Moths (%) Percentage of Light-Coloured Moths (%) 1 53.3 46.7 2 53.3 46.7 3 53.3 46.7 4 56.7 43.3 5 60.0 40.0 Processed Table 9.

  2. Bio lab - Oxygen Consumption in germinating and non-germinating seeds

    This means that germinating seeds consumer more oxygen than the non-germinating seeds in both room temperature and ice water. The reason why germinating seeds consumes more oxygen is that they process faster cellular respiration. The faster cellular respiration occurs, the more oxygen it consumes.

  1. Environmental Factors affecting plant growth

    * The third treatment contained tubes that contained 50% of complete sach solution and 50% of sach solution without phosphorus. The tubes of this set were each filled up with 11ml of complete sach solution and 11ml of sach solution without phosphorus.

  2. Investigating the Effects of Salt on Seed Germination

    The percentage of germinated seeds also decreased as the concentration of salt increased, further proving my hypothesis valid. This is supported by the sufficient data plotted on the graph, which clearly shows evidence of this with the lowest concentration (0.5%)

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