A good way to brainstorm a science project title is to start by thinking about interesting topics. Narrow the topics by writing down ideas related to the chosen categories. Invite friends to a brainstorming session, and set a time limit, such as 15 minutes.
Here is an example of this method: Choose a broad category such as chemistry. Narrow it down into more specific topics, such as chemical reactions, foods, and properties of materials. Focus on creating testable questions. Keep in mind that the project will rely on using the scientific method, and revolve around a testable hypothesis. Choose a question that can be tested and answered within a short period of time. In most cases, choose a simple test rather than a complex test that involves combining variables.