1. RESEARCH: The first step in any investigation is to research your topic. This can be done in a variety of ways.
The experiment you are trying to perform might be building upon ones you have done earlier or be a result of something you have noticed.
2. PROBLEM: Test one thing and get the results. Once you have the results for this experiment, you can always test other variables.
3. HYPOTHESIS: A hypothesis is essentially a prediction of the experiment's result. It shouldn't be a blind guess.
4. EXPERIMENT: Run your experiment, testing for your variable. This almost always requires you to run the experiment multiple times.
5. RESULTS: Here is where you show your results and let the whole world know what you found at the end of the experiment.
6. CONCLUSION: When writing a conclusion, you should try to answer a your hypothesis, as succinctly as possible.