Try to choose a project based on an area of interest to you. This will make your project much more enjoyable to do.
2. Know the Scientific Method:
There are some key elements that characterize science. These include: reliance on observation, having a testable question, and avoiding observer bias.
See more discussion of the scientific method.
3. Seek additional resources:
Besides the Internet, there are a number of other valuable resources that are available. Try consulting the MY NASA DATA E-mentor network or a topic expert, or visit your local library for printed materials on your topic.