There are different forms of this scientific method. Some are just like my graphic above, some have other steps in there. They are all generally the same. Here is a very basic description.
Start with a problem. Why would you do something scientific if not to look at a particular problem or question right? Example: which brand of battery lasts the longest?
Research. You can’t do any science without first looking at what has already been done on this topic. How else could you stand on the shoulders of giants?
Create a hypothesis. This is an educated guess. Example: I think that the Duracell batteries will last the longest.
Perform the experiment. How can you have a science project without any data? Example: connect different batteries to lightbulbs and see which one lasts the longest.
Analyze the data. You have to do something to the data. If it is just plain data, it isn’t science. Example: average the times for different batteries to keep the bulbs glowing. Oh, if you need to, you can go back to your research and start the process over. This is sort of like using your last bird in Angry Birds but you didn’t knock over all the pigs. You start over.
Create a conclusion. I recommend always starting your conclusion with “my hypothesis was correct”. Example: the average time for Duracell batteries was the longest. They are the best.