Woodlice Essay

299 Words2 Pages
Evelyn Pardillo Access-NursingA Title : The response of Woodlice to Dark and Light Conditions. AIM: This experiment aims to determine the behaviour of woodlice to light and dark conditions when put in a choice chamber. MATERIALS: choice chamber lamp stop-clock 20 woodlice spatula sheet of light proof material piece of fabric glass jar or beaker Methods: 1.The choice chamber were set up by placing woodlice onto the fabric. 2.Place each quarter equal amounts of woodlice. 3.Be sure the light proof cover was in place and cover exactly half of the choice chamber. 4.Position the lamp above the choice chamber and switch it on. 5.A digital stop clock was started and record the number of woodlice in each side of the choice chamber at 30 seconds interval for 5minutes. 6.Record all the results. Results: Presentation of Results: Conclusion: Woodlice are negatively phototactic-they move away from a light source. They have this ability because they possess light receptors that are sensitive to levels of illumination. It was observed that woodlice lives in dark places which normally damp places, whereas bright places tend to be drier and warmer. Because woodlice need humid conditions as well as dampness, as they will move towards dark places which tend to be humid. Evaluation of Experimental Procedure: What conditions are you investigating? Response of woodlice to dark and light conditions. What should you keep the same and what will you changed?Temperature. How will you record and present you observations? By using graph. How will you make sure that your results are reliable? Repeat experiment several times to have a valid and accurate results. Are there any factors that could contribute to errors? Probably the equipment used and the temperature used can validate the accuracy of

More about Woodlice Essay

Open Document