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

Acid rain Investigation

Extracts from this document...

Introduction

Dale Jacques Science Investigation Acid rain Investigation The aim of this investigation is to find out what effect acid rain has on crop growth. I will investigate this with the following experiment; I will put 2 crops named Wheat and Barley into three sealed bags with two different concentrations of acid in with them and one concentration of water. Each bag will contain one wheat plant, one Barley plant and a solution of either acid or water. The two concentrations of acid and the concentration of H2o will each be transferred into a separate pot using a dropper, by using the dropper I can accurately measure how much of each solution goes into each tub; Each tub is lined with cotton wool to prevent spillages. The variables in this experiment are the concentrations of acid in each bag, the plant sizes and type e.g. in one plant a barley plant could measure 8cm this would make the test unfair because the smaller plant would be more easily effected. Also the plant type is another variable i.e. ...read more.

Middle

After the experiment I will compare the colour which the universal indicator strips have turned to the Ph scale this will tell me how acidic the plants atmosphere is in each bag, this will determine which concentration of acid effects which plant worst. To make this a fair test I will put the same amount of acid in each pot, I will ensure the same amount of acid will be put in each pot by using a dropper to measure the amount of acid I have put in each pot. I will use the same size plants (roughly), I will ensure the plants are (roughly) the same size by measuring them and comparing their sizes. I will put the same equipment in each bag e.g. each bag will contain 2 plants (one wheat, one barley) three universal indicator strips, one measurement of acid, one piece of cotton wool and a small pot/tub. To make sure the results are accurate I recorded the size of each plant before and after I put it in a bag with the acid this will show if an acidic atmosphere effects crop growth, the measurements are as follows: Measurements ...read more.

Conclusion

pot-Weak acid Description-Short, droopy, white and shrivelled Measurement-20 Cm Plant-Wheat Substance in pot-Weak acid Description- Short, droopy, white and shrivelled Measurement-19.1 Cm Plant-Barley Substance in pot-Strong acid Description-Quite tall, White tips and droopy Measurement-23.0 Cm Plant-Wheat Substance in pot-Strong acid Description-short, weak and white in places Measurement-17.5 Cm The universal indicator changed a variety of colours including white! The results are as follows: Substance-Water Plant-Wheat Colour-Green Ph-Ph 7 Neutral Substance-Water Plant-Barley Colour-Green Ph-Ph 7 Neutral Substance-Weak acid Plant-Wheat Colour-Bright yellow Ph-Ph 2 Substance-Weak acid Plant-Barley Colour-Bright yellow Ph-Ph 4 Substance-Strong acid Plant-Wheat Colour-Bright yellow Ph-Ph 3 Substance-Strong acid Plant-Barley Colour-Bright yellow Ph-Ph 3 Also there is a weak acidic atmosphere in the weak and strong acid bags and a green fungi was growing on the soil in the weak acid bag. Analysis What I Have found out is that the acid does affect crop growth and does damage plants I have proved this by using my results and observations. My prediction was correct and bags with strong and weak acid did affect the crops growth compared to the bag with the pot containing the water sample. I can prove this with the graph below: ...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 Aqueous Chemistry 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 Aqueous Chemistry essays

  1. The effect of Acid Rain on Seed Germination.

    In contrast to sulphur, nitrogen is not an impurity but rather a part of the organic material making up fossil fuels. Fossil fuel combustion releases nitrogen into the atmosphere, usually in the form of nitric oxide. Nitric oxide is oxidized by certain atmospheric molecules, such as ozone or hydrogen dioxide, to form nitrogen dioxide.

  2. Antacid Investigation.

    Take down the results showing the difference. Repeat this process again for every other antacid tablet and take down the result. When starting the next tablet you do not have to fill the burette up to 0 but take a note of where it was then calculate the difference.

  1. Investigating the effects of varying pH levels on the germination of cress seeds

    = Successful germination (%) ? = Unsuccessful germination (%) Table showing observed and expected results from day 1 of the experiment pH 7 6 5 4 3 2 1 O E O E O E O E O E O E O E ? 87 48.4 72 48.4 67 48.4 54 48.4 59 48.4 0 48.4 0 48.4 ?

  2. Investigating the Effects of Increasing Copper Sulphate Solution Concentrations on the Germination of Cress ...

    Also, I had to use syringes to measure out each solution because there were not enough micropipettes for the class to all use one. This could not have affected the investigation because it meant all solutions were being measured the same way, but some may have not been measured very

  1. Aspirin Investigation

    Crystals of aspirin will appear and soon the mixture will form a crystalline mush. III. Dilute by stirring in about 100 ml of cold water and cool by placing in a water bath containing crushed ice. IV. Filter off the crystals using a Buchner funnel, washing once with ice water.

  2. Reactivity Series Investigation

    the others and the syringe is not long enough to measure the gas given out by calcium without heat after 80 seconds which is more than 112cm3 of gas.Calcium is the most reactive metal because it is given out more than 60 cm3 more gas than magnesium when it is

  1. Formation and Effects of Acid Rain.

    In a way acid rain didn't have to be the creation of human activity, it just is now. Acid Rain between Countries The graph that shows 'estimations of emissions and depositions of sulphur' tells us what countries received the highest and lowest values for depositions and emissions.

  2. What is Acid Rain?

    Effects of Acid Rain Acid rain causes acidification of lakes and streams and contributes to damage of trees at high elevations (for example, red spruce trees above 2,000 feet) and many sensitive forest soils. In addition, acid rain accelerates the decay of building materials and paints, including irreplaceable buildings, statues, and sculptures that are part of our nation's cultural heritage.

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