369 projects whose affiliated fair was here, most recently in 2026.
ISEF records a state or province for some finalists and not others, so these counts do not add up to the country total.
369 projects · showing 1–30
ISEF · 2026
Energy: Sustainable Materials and Design
Sargassum buildup along the coasts has raised environmental concerns and spurred research into its potential as a renewable energy source. This study examines how reaction time influences bi…
ISEF · 2026
Mathematics
This project proposes a fully model-free, parameter-free framework for time-series forecasting based on discretization and relative transition frequency matrices (RTFMs). Existing time-serie…
ISEF · 2026
Mathematics
This research aims to characterize divisor topologies within the framework of tau-factorization where tau is a symmetric relation on the set of non-zero, non-unit elements of an integral dom…
ISEF · 2026
Microbiology
In the United Stated more than 2.8 million antimicrobial-resistant infections occur each year. According to CDC's (2025) AR Threats Report, more than 35,000 people die of this infection and…
ISEF · 2026
Earth and Environmental Sciences
This study investigated the accumulation of heavy metals in lichens as bioindicators of air quality in southern Puerto Rico. The objective was to evaluate whether proximity to industrial act…
ISEF · 2026
Biochemistry
Around 40.8 million people are living with HIV at the end of 2024 (World Health Organization, 2024). Around 630,000 deaths were due to HIV-related causes. These numbers highlight the need fo…
ISEF · 2026
Mathematics
The purpose of this study is to investigate the maximum growth M(n) of Collatz orbits and to propose that its variability is structured rather than random. A total of 832,000 values were ana…
ISEF · 2026
Engineering Technology: Statics & Dynamics
This study investigates the development of a more efficient transmission and generator system for wind turbines. Current mechanical transmissions in turbines suffer energy losses from fricti…
ISEF · 2026
Engineering Technology: Statics & Dynamics
Approximately 50% of dogs suffer from anxiety caused by high-intensity sounds (Grigg., et al., 2021). This is why this project worked on the design and construction of a treat dispensing mac…
ISEF · 2026
Chemistry
Oxidative stress is a harmful bodily process which is linked to diseases like cancer and heart disease. Azo dyes have demonstrated bioactivity, specifically antioxidant and antibacterial pro…
ISEF · 2026
Physics and Astronomy
The dynamic radio sky exhibits transient phenomena on timescales from seconds to days, yet sustained monitoring is hindered by the limited number of large observatories. This project investi…
ISEF · 2026
Embedded Systems
Worldwide, food waste is a major contributor to methane emissions, a potent greenhouse gas, creating an urgent need for sustainable, decentralized energy technologies. EcoSense-CH4 is a smal…
ISEF · 2026
Chemistry
The search for renewable energy sources is an important focus of modern research due to challenges such as climate change and the reduction of fossil fuels. Microbial fuel cells (MFCs) are c…
ISEF · 2026
Biomedical Engineering
Assistive mobility devices are important for improving balance, stability, and independence in individuals undergoing motor rehabilitation. In Puerto Rico, many people experience difficulty…
ISEF · 2026
Earth and Environmental Sciences
This investigation examined whether untreated sargassum and sargassum treated with a wax coating can function as efficient absorbents of hydrocarbons in seawater. The research question guidi…
ISEF · 2026
Materials Science
Skin and soft tissues infections (SSTIs) remain a major global health concern, due to rising antimicrobial resistance, delayed wound healing, and limited access to effective localized therap…
ISEF · 2026
Behavioral and Social Sciences
This research examined how social media use influences the social acceptance of adolescents aged 14 to 16. Therefore, the purpose of the study was to determine whether social media contribut…
ISEF · 2026
Embedded Systems
Coastal erosion presents a critical environmental challenge for the world, where shifting weather phenomena driven by climate change threatening vital ecosystems and infrastructure. The stud…
ISEF · 2026
Microbiology
The global rise in bacterial resistance has spurred the exploration of natural alternatives with potential antimicrobial activity, including Kalanchoe pinnata, a plant traditionally used for…
ISEF · 2026
Biomedical and Health Sciences
Organophosphate (OP) exposure affects millions worldwide due to life-threatening and possibly irreversible symptoms. Neurological injury often persists after treatment, suggesting non-cholin…
ISEF · 2026
Software Design
Twelfth grade students frequently encounter challenges related to their academic performance, which could be due to limited study strategies and ineffective learning habits. KeyserKat aims t…
ISEF · 2026
Translational Medical Science
The purpose of this investigation was to develop a machine learning model capable of predicting early vocal patterns associated with glottic carcinoma risk using acoustic biomarkers and life…
ISEF · 2026
Physics and Astronomy
This project evaluated the ability of laboratory-scale permanent magnets and a battery-powered electromagnet to generate magnetic pressure and compared their capacity to approach the pressur…
ISEF · 2026
Materials Science
Artificial turf systems are essential for modern sports infrastructure; however, their long-term safety and playability are often compromised by the mechanical qualities of traditional polym…
ISEF · 2026
Behavioral and Social Sciences
The rise in cases of depression, anxiety, and other emotional disorders has led to an alarming increase in deaths from self-inflicted causes, especially among adults under work, academic, an…
ISEF · 2026
Energy: Sustainable Materials and Design
This research project aimed to design and evaluated a prototype of Plant Electric Cells (PEC) capable of generating clean electricity from the natural growth of living plants. A green area w…
ISEF · 2026
Software Design
Climate volatility remains a primary obstacle to global food security, subjecting 500 million subsistence farmers to catastrophic financial losses due to the disconnect between traditional p…
ISEF · 2026
Plant Sciences
Coastal wetland restoration is increasingly challenged by climate-driven salinity shifts that impose physiological constraints on vulnerable plant populations. This study evaluated how natur…
ISEF · 2026
Animal Sciences
Microplastics are emerging environmental contaminants that have been detected in diverse ecosystems and biological systems. Increasing evidence suggests that these particles can induce oxida…
ISEF · 2026
Engineering Technology: Statics & Dynamics
This project investigates the design and analysis of a rotary vane combustion engine (RVE) for portable generators to reduce engine imbalances, design complexity and increase torque producti…