This Biology quiz is called 'Evaluating' and it has been written by teachers to help you if you are studying the subject at middle school. Playing educational quizzes is a fabulous way to learn if you are in the 6th, 7th or 8th grade - aged 11 to 14.
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Throughout your experiment or investigation you should constantly be evaluating. Evaluating involves assessing how the experiment is going as you carry it out, how you feel it went and what could have been improved if it was to be carried out again. Evaluating is an important part of the scientific method and your written evaluation comes at the end of the experimental write-up, usually as a part of the conclusion. In this middle school Biology quiz we look at the purpose of evaluations.
Whilst carrying out your investigation, you may find that some of the ideas you had are not working well. You may wish to make changes in order to improve your method. If you do, then you should mention it in your evaluation. It is a sign of a good scientist and you will receive credit for explaining why you changed your plan. Even if you didn't change plan, saying in the evaluation any changes that you could have made to improve the method you used will gain you some credit.
Part of evaluation is spotting any results that are anomalous. These are results that don't fit the pattern. If you have the opportunity, you can repeat these parts of your experiment, otherwise you can discard them. Even if you do neither of those things, at least mention them and say why you think they are anomalous (e.g. they are too high or low to fit the pattern). Candidates taking the higher tier should then be able to decide how reliable the results are and if they are sufficiently good quality to support the conclusion.
Finally, to gain credit at the very highest level, you should decide on what you could do to extend your experiment to get additional evidence relevant to the investigation and write in your conclusion a plan of action for an experiment to carry out the extra research.