Science projects suitable for fifth grade students can be found on the educational website Education.com. The site includes hundreds of grade-appropriate projects that cover a variety of subject areas, including physics, chemistry, astronomy, ecology, geology, engineering and psychology.
Another resource for fifth grade science projects is the U.S. government's kid-friendly website Kids.gov. In addition to general sources for science projects, the website also recommends sources specific for topics covering earthquakes, energy science and the weather. The sources offer projects designed for science fairs.
The Space Place, maintained by NASA, offers science projects on space, the earth, the solar system and the sun. For example, in one project involving the sun, students observe and record changes in sun spots over the course of several days.
Science projects for fifth graders that cover concepts in neuroscience and the brain are found on the University of Washington website provided by Dr. Eric H. Chudler, research associate professor for the Department of Bioengineering. Possible projects include modeling the nervous system and examining reflexes, the senses, sidedness, sleep, dreaming, memory, learning and biological rhythms. Chudler recommends additional sources for science projects available from faculty at the University of North Carolina at Chapel Hill and Colorado College and also provides lesson plans for educators.