The start of the scientific method. The reason you are preforming this experiment is to answer this question.
Rather than starting from scratch, this helps you answer your question and allows you to use the best methods possible.
an educated guess or prediction on what will happen or what the answer to the problem is.
to conduct a test or investigation. This will test whether your hypothesis is true or false.
observe and analyze your data to see if your hypothesis was true or false.
Decide the results of your hypothesis and formally write up the results of your experiment.