What strong projects actually look like — the question they asked, the design that survived review, and the one decision that made the difference.
Archive entries are summaries compiled for study. Read them for how a project was structured, argued, and defended — not as a template to reproduce. Copying someone else's project is the one thing that will end yours.
4 projects
XinYan Chen
Third place · Regeneron ISEF 2025
Reported indoor formaldehyde reduced by nearly 90% over 18 hours.
Aleksandra Petkova
Third place · Regeneron ISEF 2025
A study of how vessel speed shapes wake patterns, combining aerial photography of real wakes with controlled trials using remote-controlled boats, to predict the speed that minimises drag for a given hull size.
Cory Seelenfreund
Third place · Regeneron ISEF 2025
Simulation and mathematical modelling of how memory length and degree of self-interest change outcomes in the iterated prisoner's dilemma, framed around implications for AI agent design.
Uma Sthanu
Third place · Regeneron ISEF 2025
An investigation of how prostaglandin E2 affects damaged neural cells, aimed at treatments for brain disease and traumatic injury.