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Ten questions parents ask about science fairs

What age can they start? Can you team up across schools? Is it expensive? The ten questions parents ask us most about science fairs, answered in one place.

Originally published March 2023

When science-fair season arrives, the questions pour in. We've gathered the ten we hear most and answered them all here. (Where admissions credit is involved, the actual rules change from year to year — always defer to each school's and each pathway's current-year prospectus.)

Starting age and how to enter

Q: What grade can a child start competing in science fairs? From fourth grade.

Q: Can students form a team across different schools? Technically yes, but we strongly advise against it — cross-school teams pull in a lot of administrative coordination, and in practice almost no one does it.

Q: Can an outside teacher be listed as the supervising teacher? No. The official supervising teacher can only be a teacher from the child's own school. One word of caution: choose that supervising teacher carefully — there are more than a few horror stories in this line of work.

How much it matters for admissions

Q: How important is a science fair for admissions? Science fairs have run for many years; the judging system is mature and carries real credibility. As a result, plenty of admissions pathways — from gifted-program selection to universities' special-talent and portfolio-review routes — weigh a student's science-fair record heavily. (How it's counted follows each school's and each pathway's current-year prospectus.)

Q: How is a science fair different from independent study or a short research paper? The core scientific method and process are much the same; the main difference is how complete the experimental structure is. For admissions purposes, the formal science-fair result is usually the one that carries the most weight.

Who it suits, and what it costs

Q: What kind of child suits a science fair? One who honestly understands how hard it is — and is willing to put in the work. A child looking for a way to skip a rest period or take a legitimate day out of class is not a good fit; that mindset won't survive a year of research.

Q: Does a science fair take a lot of time? Yes. Roughly three hours a week throughout, over a research timeline of about a year, with the winter break usually the frantic crunch period.

Q: Is a bigger team better? No. The more members, the easier it is to end up with dead weight, scheduling headaches, and uneven workloads. We usually recommend a team of no more than two.

Q: Is a science fair expensive? Do you need elaborate instruments? Not necessarily — it depends on the topic. At the elementary and junior-high level you generally won't need anything unusual. At the senior-high level you may sometimes need third-party testing, or to borrow instruments from a university, and that's where extra costs come in.

How we mentor

Q: How do you mentor science-fair projects? We take on only a handful of teams a year, and only teams where every child has already built a solid research foundation, where parents fully understand the demands on time, energy, and money, and where the family respects our mentoring principles. Sessions are usually held on weekends, and we see a project all the way through — from generating the question and designing the experiments to the final poster and the practice for the oral defence.