How to Write an Aim
The aim is the purpose of your experiment. The aim for this experiment is 'To investigate if concentration changes the rate of reaction of chemical substances.'
How to Make a Hypothesis
A hypothesis is a prediction. Your hypothesis should try and predict what will happen in your experiment. An example of a hypothesis for this experiment is: ‘I predict that adding 1 drop of lemon juice to the cabbage water and dish soap solution will make the cabbage water turn its original colour again (the solution will neutralise).'
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Carrying out an Accurate and Safe Experiment to Get Valid Data and Draw a Conclusion
To make sure any experiment is successful, you need to follow all the instructions. Changing anything could give you wrong results. Ask your teacher/guardian for help if you are stuck. In your conclusion, you must summarise your results, saying whether you think that the experiment result supports or contradicts your hypothesis.
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How to design a Fair Test (Scientific Method)
When designing a fair test you have to state all the quantities and materials that you use in your experiment. You must also create step-by-step instructions as this makes it easy to follow along.
In order to design a fair test, you must also consider the 3 variables:
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