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

Monitor cress and see if different water types affect their growth.

Extracts from this document...


Biology Coursework Aim: To monitor cress and see if different water types affect their growth. Prediction: I predict that the mineral water will help the cress grow best because all the best minerals are still in the water and haven't been filtered out. Most of the waters have gone through some kind of process and when they do this some of the minerals and removed from the water e.g. things are removed from sparkling water and distilled water so you can drink it but the things are good for plants. Apparatus: 15 x cress seeds 5 types of water Measuring cylinder Planting pots Ruler Soil Method: First, I will get all the 15 cress seeds and put them each in a separate planting pot with some soil. I will make sure to use the same amount of soil with each seed as the soil contains nutrients as well as the water. ...read more.


I will also make sure that there is always the same volume (50ml) of water for each seed. I will perform this experiment three times as to make sure of no special seeds and to make an average. I will measure the cress in mm every day. This way there will be the same amount of time between measurements. This experiment will be performed over a period of 11 days. Results (in mm) Distilled Water Salt Water Mineral Water Sparkling Water Tap Water Day 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Day 2 0 0 0 0 0 0 1 1 2 2 2 3 3 3 4 Day 3 1 0.75 1 0 0 0 7 7 7 6 5 6 9 7 8 Day 4 2.5 2 2.5 0 0 0 14 13 14 13 14 15 17 17 19 Day 5 4 3.5 ...read more.


This shows me that the minerals are not just provided from the water but also from the soil otherwise I assume that the mineral water would have grown the best cress as it has "the best nutrients". Evaluation If I was to do this experiment again to get better results there are two things I would change. Firstly, I would have taken results over about a month to give the seeds a real chance to grow and so there may have been a bigger range of growth to compare the water types in. If there were a greater time to grow, maybe another water type would have shown the greater results instead of tap water. Secondly, I would have used more types of water as one of them may combine all the good things from each type of water to make really good water to grow cress in. Steven Titterton Biology GCSE Coursework Dr Wareham ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our GCSE Green Plants as Organisms 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 GCSE Green Plants as Organisms essays

  1. Investigation into Cress Seeds

    � Spaced equally - If many seeds are close to each other their roots will find it harder to move as opposed to a seed with a lot of surrounding space. It is likely this seed will grow more, and therefore the results of variation will not be fair.

  2. An Investigation To Show What Different Factors Affect The Growth & Germination Of Cress ...

    I decided to use 2ml cubed for each section. The solutions I made were 1/3 Sachs and 2/3's water. This is a diagram of my experiment. It shows the 4 different petri dishes. In order to be able to monitor the cress I will draw up a table. For each day that I water the cress I will observe:

  1. An investigation into the effects of different concentrations of lead chloride on the growth ...

    and is highly effective at inhibiting ATPase - an enzyme required in the production of ATP in photosynthesis (and respiration). It also disrupts the chloroplasts and, reduces the production of chlorophyll and carotenoids, interrupts the electron transport chain and causes the closure of stomata which results in a lack of carbon dioxide.

  2. Mangrove Soil Analysis

    Some plants tend to thrive in one condition but placed in another death is inevitable. They prefer either one or the other along with many soil organisms that live alongside the flora. The pH of the soil can also affect the availability of nutrients.

  1. We have been told to germinate and monitor a special seed (Cress Seed which ...

    The third one that was kept in the fridge still had no change. 4. In the fourth test tube the length of the shoot was 25.5cm, the width of the leaves were0.5mm, the colour of the leaf were yellow and the number of the leaf were four.

  2. Science Coursework

    To make sure that light intensity is the only major variable I will place my boiling tube in a beaker of cold water (bath tub) so that the heat energy from the lamp is mostly ineffective due to the presence of the cold water acting as a heat shield.

  1. Identify any differences that occurred, during the growth of hyacinths grown hydroponically, when different ...

    When the shoots are two inches tall, the roots should be well extended. Then the containers should be moved into slightly warmer temperature. After a few days, they should be moved to a sunny windowsill. The flowers should be turned a bit each day so that they do not lean towards the sun.

  2. Types of tourism and the conflicts that arise between tourist types and the environment ...

    On this day there was a lot of people visiting Rutland water. To obtain information to answer the main question I will have to use various methods, these methods are include: * Questionnaires * Tally Charts/surveys * Maps of route * Field sketches * Photographs * Environment quality index * Transport timetables e.g.

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