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Investigation Title

Here’s an example of how this page might look. Delete this text box when you’re ready to start. What Utter Rot! What factors influence the decomposition rates of food?. Investigation Title. Delete this text and add a brief statement of the aim of the investigation. Background Information.

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Investigation Title

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  1. Here’s an example of how this page might look. Delete this text box when you’re ready to start. What Utter Rot! What factors influence the decomposition rates of food? Investigation Title Delete this text and add a brief statement of the aim of the investigation.

  2. Background Information • Add some information here about why you chose this topic. Why is it a worthwhile investigation? Add any in formation about prior knowledge you have of the topic before beginning the investigation. See sample. • Delete this text when you are ready to start.

  3. Hypothesis Add your hypothesis here. This is a statement about the predicted outcome. Refer to variables being tested.. For example; Food will decompose more quickly at higher temperatures. Delete this text when you’re ready to start.

  4. Variables • List the factors which could influence the experiment and need to be kept the same for all replications. • For example; • Temperature • Time • Placement • The variable which will be changed (independent variable). See sample • The variable which will be measured as a result of the change (dependent variable). This change might be a quantitative (one that can be counted) or a qualitative (one that can be observed) change. • The control. This is a sample that will not be treated. • For example; In an experiment where nutrients in water are being investigated, this sample would be watered with untreated water only.

  5. Method • In this section write what you did as a series of logical steps, how you collected your information, the equipment that you used. Experiments should be designed and written so that the method can be reproduced by other people and give the same result. Replication ensures that your results are valid. See sample • It is a procedural recount and is written in the past tense. Do not use “I” or “we.” • Delete this text when you are ready to write your method.

  6. Method continued

  7. Equipment • List all equipment here. Use correct scientific names and sizes.

  8. Sample Size • Where possible experiments should include a large sample size. This increases the reliability of the experiment by reducing the chance of errors or an unusual result. Write a statement about sample size in your investigation. • Here’s an example of the need for an adequate sample size. In the investigation of the decomposition of foods it was important to use several samples of each food. This ensured that there were not other factors influencing the result, such as the age of the food or its origins. • If sample size isn’t a consideration in your investigation delete this slide by using edit > delete slide

  9. Randomness • If you have a large sample size it may be necessary to randomise the placement of your trials. An example of randomness in a plant experiment would be to arrange the pots like this… So all pots receive the same amount of sunlight, warmth, airflow etc • Explain how this was done. If randomness isn’t an issue in your investigation, delete this section. Safety • Describe any safety considerations for your experiment.

  10. Describe what you did to your raw data so that it could be analysed. For example: The numbers of macro-invertebrates were counted, added up and graphed using Excel Include your data – graphs, tables etc. below Describe what happened. What did you observe? What trends have you observed? Eg. With regular watering all samples grew throughout the experiment. Are your results significant? Does the measurable data show a large enough difference for you to be able to say that your independent variable made the difference. Results

  11. Results continued

  12. Conclusion/Discussion • The conclusion answers the question. It is a summary of what occurred in the experiment. • What do your results tell you? • Were there any trends or patterns? • Has the hypothesis has been supported by the experiment or not? • What other questions does your experiment raise? • Were there any problems during the experiment? • Were there any unexpected events? • How could this experiment be improved in future?

  13. Conclusion continued

  14. References and Acknowledgements • List the references and people who gave assistance during the project. Use a standard reference system. • For example: • For books: • Smith JM. Tomatoes that changed the world, New York: Macmillan. 2005. • For journals and magazines: • Jones A. How to get your tomatoes flowering. Education Monographs, 2001.5,6:2-5. • For pamphlets • Australian Photonics, The how, what and why of optical fibres. Australian Photonics. Sydney • For websites • Learning Materials Production.2005. NSW Department of education and training, Sydney, viewed 20 March 2005 www.lmpc.edu.au/Science/junior_science/project.htm • For people: • Fred Bloggs, nursery assistant • Do not include address or telephone number, to protect the person’s privacy.

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