Design your club. Brainstorm what you want the club to be like before you take any further steps. Decide how often you will meet, how long meetings will be, what you will discuss or do during meetings and whether or not you will you enter competitions or perform experiments. Come up with a relatively comprehensive outline of your prospective science club, along with acknowledgement of questions about the club which you may not know how to handle yet.
Get permission from the principal. Schedule a meeting with your principal to discuss your ideas. If your prospective club needs funding from the school, be sure to bring this forward immediately. Outline how your club will function within the school; for example, explain what room you need to and at what time you need it for meetings. If you plan on going to competitions, mention that your club will bring increased awareness and representation of the school.
Start advertising for the club as soon as you have your principal’s endorsement. Print up flyers to post along the hallways and talk about the club in your classes. If possible, ask your students if they're interested in joining your new science club. Once you have members, ask them to tell their friends about the club.
Begin hosting meetings. Use brainstorm ideas for at least the first meeting. Encourage club participants to suggest activities to perform during meeting times to get a better feel for what your students want to get out of this extracurricular activity. Incorporate their ideas into your future plans for your new middle school science club.