James Crosbie
02/05/2007
Biology Coursework: Investigation of Speed of Woodlice in Areas of Different Light Intensities
Plan
Hypothesis
In my experiment the independent variable is light intensity and it will be measured by 1/distance of a lamp.
There are many other variables, which must be kept constant or this will not be a fair test. They are: species of woodlouse, there are two main species but I am to use the same species, the Porcellio Scabar, throughout so it does not matter, they are very similar anyway. The other conditions which I will monitor are temperature, which, as the lamp gives off both heat and light I will put a transparent screen in the way to absorb any heat but allow light through, and humidity which will be controlled by keeping any water well away from any of the apparatus.
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3 Stars. Response to the question The student has answered the majority of the question. The scientific explanation and layout is of a variable quality with some elements such as the evaluation missing altogether. Level of analysis The hypothesis is not stated explicitly and it analysis has not been completed. Some of the control variables have been mentioned, and there is also a logical progression through the investigation as you can see how one section leads on to the next. Quality of writing The student has followed most of the conventions expected at this level. Improvements: All sections of the scientific method need to be addressed including the evaluation and analysis. There quality of the data is also variable to improve this more data needs to be collected and averages calculated.
