To communicate you need to share ideas and the results.
conclusion you need to for a conclusion to the experiment.
observation is to collect data from the experiment.
Experiment is the third step to the scientific method.The experiment is to test the hypothesis.
Hypothesis is the second step to a scientific method. Hypothesis is to make an experiment.
Question and a problem are the first steps to the scientific method. Question and problem make a hypothesis.
The 5 steps to the scientific method is Make a question Hypothsis make a experiment collect data from the experiment and form a conclusion.