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Ib Biology Lab Report

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I. Parts of a Lab Report 1. Introduction: a. Title b. Research Question c. Hypothesis d. Variables e. Control of Variables 2. Materials & Methods a. Materials b. Method 3. Data a. Data b. raw data c. uncertainty d. presentation e. processing data f. Graphs 4. Results/Conclusion a. Conclusion 5. Discussion a. Evaluation 6. References II. Other Help errors and uncertainty A. Design [pic] I. Research Question • Rather than an Aim and Hypothesis you need to start your Design practicals with a focused research question. A Design practical has a title that is deliberately vague. You, the student, are expected to come up with the independent …show more content…

• The range of a thermometer (eg –20°C to 120°C) • The amount of each solution (eg 200 mL) [pic] VI. Method • You will write your own method, I won’t supply one for you to “copy”. Use “impersonal language”; which means no words such as “I”, “we”, “they”, “you” etc. Eg: “I weighed out 0.50 g of magnesium and then I added 2.0 cm3 of 2M hydrochloric acid” should be rewritten as “Add 0.5 g magnesium to 200 cm3 of 2M hydrochloric acid” • Make sure you record the amounts of materials to a sufficient precision in your method. Eg: If you weighed 20 g of magnesium using a volumetric pipette this should be recorded as 20.00 g and not just 20 g. Why? Because the scale has a precision of two decimal points • Don’t include “obvious” steps in your methods. Steps such as: “collect and put on safety equipment” “clean up bench and return apparatus to the trolley” These steps would be relevant to pretty much any experiment and so don’t need to be included. • While writing up your method in “dot point” or numbered form is acceptable, real scientists actually write their methods in paragraph form – try it. • Your method must explicitly indicate how each controlled variable identified in your variables section was controlled. If you can’t actively control a variable then your method should include a means of monitoring it. • Sometimes the best thing to do for your method is to draw a diagram of the experimental set up and refer to it. That’s

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