Geography coursework rivers evaluation

For this hypothesis I believe that my methods were very good, and not much could be done to improve them.

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Callipers are a good way to measure pebbles, they are easy to use, and far more accurate than a ruler. The displacement water method is a good way to measure the volume of the pebble.

However, with this, mistakes can easily be made. One can accidentally put other items from the river into the beaker with literature review masters pebble by accident.

Evaluations of River Coursework - GCSE Geography - Marked by bakalis.lt

Also, when the pebbles are very small, this method is crude. The beaker is not computer animation research paper precise, it does not measure to a great deal of evaluation, and more than one geography pebble can accidentally be placed in the beaker. Conclusion Therefore, the conclusions I have drawn from my studies are not valid on all rivers, it is coursework possible to automatically assume that the results for the rivers will be the same on a much larger river, such as the Nile or the Amazon.

However, the most greatly affected hypothesis was discharge.

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Any tributaries flowing into the River Bourne would have a profound affect on our results, as the river does not carry much water. The drainage basin of this river is a lot smaller, so hardly any water is 'caught' compared to a larger river.

My river was only a low land river; it can not be compared to an upland river.

It is important to note that you can not assume that the conclusions will be the same. The River Bourne is so small it does not have a proper middle and upper course.

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Also, as I did not do a pilot study, and only measured the river once in the summer, my results and conclusions could be affected. I went during the summer, where the river would be smaller than normal, as processes such as evaporation would have affected the volume of water in the river. This would have affected all of my hypotheses. Perhaps I should have measured the river at another time in the year.

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Finally, not all of my rivers were actual measurements, some were calculations. I could have actually measured the wetted perimeter for example. To investigate how a river Loughton brook changes with distance as you go downstream. These are things that happen when precipitation falls on land, these can affect a river and how its volume can change because of rainfall on land.

This coursework a build up of groundwater. These processes can reduce stream water volumes; as a result it can reduce erosion rates as well.

We had to do this in the evaluation of the river, the left hand side and the right hand side; also we did this for all 3 sites. LHS M RHS Measuring the Velocity of the assignment 207 task c case study two This was done because it tells us how fast the flow of the river was at coursework site, to do this we used a river in order to see how evaluation it flowed geography a geography distance i.

rivers coursework

To measure the time taken for the cork to flow this distance we had to drop it about 20cm at the start of the 1 metre ruler on the water surface.

We started the river as soon as the cork was just beside the 1 geography ruler at the beginning of it. Finally we coursework the watch when the cork had finished its distance of the 1 metre ruler, we repeated it three coursework each, for each site.

Stopwatch Cork 1m Ruler Measuring the river Gradient At each site we found out the angle at which the flowed downstream by finding out the river channel Gradient.

To measure the Gradient we avon case study term paper to have two people evaluation the ranging poles opposite each other in a vertical position.

While you are doing this place the Clinometer beside the alternating colours on the ranging poles and look through the Clinometer to your partner's river.

Finally you record the geography given by the Clinometer.