38,465 real projects from ISEF, the Canada-Wide Science Fair, JSHS, AJAS, the Calgary Youth Science Fair and the California Science & Engineering Fair — searchable by meaning, and filterable by fair, year, category and award.
ISEF · 2026
Environmental Engineering
Dependence on fossil fuels is driving climate change and environmental damage, creating an urgent need for cleaner alternatives. Hydrogen, as a sustainable and carbon-free fuel, offers a pro…
CSEF · 2026
Environmental Engineering (Senior Division) Second Award
Abstract: Introduction: Plastics are one of the most widely used materials on the planet. They are mostly made from petroleum-based polymers, which can be molded into a variety of shapes and…
CSEF · 2026
Environmental Engineering (Track 2) (Senior Division)
TerraBrix addresses the challenges of modern poultry farming and environmental degradation with the development of the AgriWeave Blox. Modern-day agricultural infrastructure for poultry farm…
ISEF · 2026
Environmental Engineering
Membrane fouling is a major limitation in crossflow filtration systems, hindering productivity, cost-effectiveness, and outcome-centered performance. This study tested whether a crossflow fi…
ISEF · 2026
Environmental Engineering
Globally, 2 billion people rely on contaminated sources for drinking water. However, health interventions face a recurring issue: systems may be effective and accessible, yet fail to actuall…
CSEF · 2026
Environmental Engineering (Junior Division)
Heavy metals contaminate a large portion of the world’s agricultural soil, consuming these heavy metals is known to harm reproductive health and has been linked to cause certain cancers. Whi…
ISEF · 2026
Environmental Engineering
The purpose of this experiment was to find an alternative to commercial concrete and determine if results from a previous experiment were due to chance or size of the aggregate. Concrete ext…
CSEF · 2026
Environmental Engineering (Senior Division)
This study investigates the effect of Bacillus subtilis, a plant-growth-promoting bacterium, on aqueous ibuprofen remediation by common duckweed (Lemna minor). The purpose of this study was…
CSEF · 2026
Environmental Engineering (Senior Division)
Access to clean drinking water remains a major global public health challenge, particularly in developing regions where affordable filtration systems are limited. In parts of northern India,…
ISEF · 2026
Environmental Engineering
The purpose is to eliminate microplastic (MPs) from cattle feed by improving the extraction device from last year to remove MPs from cattle (bovine) feed using dry removal. It was hypothesiz…
CSEF · 2026
Environmental Engineering (Track 2) (Senior Division)
This study investigates the effects of varying recycled paper–plastic compositions on thermal energy transfer in a composite insulation material. The goal of the project was to explore a sus…
CSEF · 2026
Environmental Engineering (Track 2) (Senior Division)
In modern times, our planet has plunged into a crisis of energy, one where "clean" energy systems rely on Lithium-Ion Batteries, or LIBs to store electricity. Due to the Lithium, Cobalt, and…
ISEF · 2026
Environmental Engineering Second Award
Lithium is essential for rechargeable batteries, and demand is rising rapidly due to E-mobility and clean energy growth. About 66% of the world's lithium is produced through brine pond evapo…
CSEF · 2026
Environmental Engineering (Track 2) (Junior Division)
Purpose: Plastic waste accumulation presents challenges, particularly through marine pollution and microplastic contamination. We investigated whether low-density polyethylene, high-density…
CSEF · 2026
Environmental Engineering (Track 2) (Junior Division)
Objective: My objective was to find which type of decomposing yard waste would grow the tallest plants. Materials and Methods: I baled three different types of green waste: fallen leaves, gr…
CSEF · 2026
Environmental Engineering (Track 2) (Junior Division) Second Award
Throughout the world coral reefs are dying out due to changes in water temperature and pollution, ruining one of the most important ecosystems in terms of food, resources, and products for h…
CSEF · 2026
Environmental Engineering (Senior Division)
Benzene, toluene, and xylene (BTX) are common environmental pollutants found in air, groundwater, and soil. These chemicals pose serious health risks including cancer and neurotoxicity. Wast…
ISEF · 2026
Environmental Engineering
The material use of shade balls has become an area of concern in recent years. The water used in the production of shade balls and other water covers often offsets the water that is retained…
ISEF · 2026
Environmental Engineering
Approximately 2.7 billion tons of red mud waste from the aluminum industry are stockpiled worldwide, and nearly 1.5 million tons of glass-fiber waste are generated annually. In alignment wit…
CSEF · 2026
Environmental Engineering (Senior Division)
Nitrate contamination of freshwater is one of the most pressing environmental challenges. Nitrates from fertilizer runoff enter freshwater and drive eutrophication, triggering harmful algal…
ISEF · 2026
Environmental Engineering Third Award
With approximately 4.4 billion people worldwide lacking access to safe water, sustainable purification technologies that operate efficiently under natural sunlight are necessary. Industrial…
ISEF · 2026
Environmental Engineering
In Iraq, reliance on fossil fuels and improper waste disposal methods led to Iraq having an AQI of between 65-90, and studies in local universities stated that if nothing changes in the futu…
ISEF · 2026
Environmental Engineering
The rapid increase in agricultural production produces waste that is subject to discarding, burning, and burying, causing severe environmental harm. However, a variety of eco-friendly method…
CSEF · 2026
Environmental Engineering (Junior Division)
This project investigates how three different biodegradable hydrogels - Agar, HydroxyEthyl Cellulose (HEC), and a blend of Agar + HEC can help absorb and retain water, slow evaporation and s…
ISEF · 2026
Environmental Engineering
Aquatic hypoxic “dead zones,” where dissolved oxygen levels drop to critical levels, are becoming more frequent due to pollution and climate change. These conditions threaten aquatic life, r…
CSEF · 2026
Environmental Engineering (Track 2) (Senior Division) Honorable_mention Award
As concerns about climate change and fossil fuel consumption grow, developing sustainable ways to store and use renewable energy has become increasingly important. Many home heating systems…
CSEF · 2026
Environmental Engineering (Junior Division)
Cliffsides are constantly eroding. There are numerous methods that can be used to mitigate the impact of erosion, ranging from infrastructural solutions to planting groundcover plants. The p…
CSEF · 2026
Environmental Engineering (Junior Division)
This project investigated which type of seaplant—seagrass, seaweed, or algae—can most effectively reduce acidity in water. Ocean acidification is a serious environmental issue caused by exce…
ISEF · 2026
Environmental Engineering
Mitigating climate change requires carbon dioxide removal, but conventional Direct Air Capture is prohibitively expensive. A scalable alternative is distributed, passive capture: embedding C…
CSEF · 2026
Environmental Engineering (Track 2) (Senior Division)
The rapidly increasing production of disposable plastic products has overwhelmed the world’s ability to effectively manage plastic waste. This experiment investigated which of two types of w…