Every California Science & Engineering Fair project Fairfolio holds: 17,387 entries across 24 years, with the abstract, category and awards the fair published for each one.
CSEF coverage: available historical abstracts for 2002–2019; award-listed projects only for 2021–2025, without abstracts and with explicit labels where titles were not published, except that most 2023 winners carry the abstract from CSEF's archived public showcase; public showcase abstracts for 2026. The 2020 fair was canceled.
Counts cover every year of this fair and use its own category labels, exactly as the source published them. Each one links to that category's CSEF projects.
17387 projects · showing 661–690
CSEF · 2026
Chemistry (Senior Division)
Oligonucleotide hybridization is essential for DNA repair, amplification, sequencing, and editing, and relates to the development of antisense drugs used to treat various diseases. Increasin…
CSEF · 2026
Biochemistry/ Molecular Biology (Senior Division)
This project investigates the effects of three synthetic chalcones, compounds 17, 25, and 30, on Caenorhabditis elegans. This nematode species was used as a non-parasitic model for plant-par…
CSEF · 2026
Electronics & Electromagnetics (Junior Division)
I've been running track for a while, but I always have trouble timing myself while training. The problem with commercially available systems is that they tend to be very expensive, and meant…
CSEF · 2026
Zoology (Senior Division)
Polycyclic aromatic hydrocarbons (PAHs) such as phenanthrene are widespread marine pollutants known to disrupt developmental and physiological processes in organisms, yet their molecular eff…
CSEF · 2026
Physics & Astronomy (Senior Division)
This study aimed to characterize known exoplanets by performing aperture and differential photometry to generate modeled transit light curves. It was originally hypothesized that there would…
CSEF · 2026
Earth & Environmental Sciences (Track 2) (Junior Division)
Carbon dioxide, more commonly known as CO2, is a gas that naturally occurs as a product of human respiration or as an engine byproduct. An environment with too much CO2 can cause health issu…
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
Medicine & Physiology (Junior Division)
Neurological tremors , including those caused by Parkinson’s disease and other tremor disorders can significantly impair daily functioning, making routine tasks difficult and reducing indepe…
CSEF · 2026
Cognitive Science (Junior Division)
Objective: This project investigated whether humans find answers to science questions more trustworthy when provided by an artificial intelligence system or a human. As AI becomes a tool for…
CSEF · 2026
Applied Mechanics (Senior Division)
Many drugs fail because the body clears them out quickly, preveging them from reaching a steady, healing concentration. I designed and built a wearable, breath-synchronized nebulizer. This d…
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
Alternative Energy (Junior Division)
Project Title: Turning Water into Rocket Fuel Author: Rhett Wyrick Abstract Hydrogen is an important clean energy fuel that can be produced from water using electricity through a process cal…
CSEF · 2026
Applied Mechanics (Junior Division)
Propellers are widely used in modern technology to generate thrust, making blade design an important factor in their performance. This experiment investigated the effect of propeller blade p…
CSEF · 2026
Electronics & Electromagnetics (Junior Division)
According to the World Health Organization, at least 2.2 billion people worldwide live with some form of vision impairment, and many depend on assistive tools just to get around every day. R…
CSEF · 2026
Physics & Astronomy (Senior Division)
Focused ultrasound (FUS) with microbubbles can noninvasively open the blood–brain barrier (BBB) for targeted drug delivery, but the method is limited by off-target acoustic sidelobes, which…
CSEF · 2026
Medicine & Physiology (Track 2) (Senior Division)
Pancreatic cancer remains one of the deadliest cancers worldwide, as pancreatic tumors are small and often obscured by surrounding anatomical structures. Computed tomography (CT) is the prim…
CSEF · 2026
Environmental Engineering (Track 2) (Junior Division)
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
Behavioral & Social Sciences (Senior Division)
Each year, over 350,000 people in the United States experience out-of-hospital cardiac arrest, and nearly 90% do not survive. Early cardiopulmonary resuscitation (CPR) can triple survival ra…
CSEF · 2026
Physics & Astronomy (Senior Division)
The computational power of quantum computing is expected to expedite advances in fields from chemistry to machine learning. However, this potential is locked behind the high error rates of p…
CSEF · 2026
Medicine & Physiology (Junior Division)
Prosthetics are everywhere these days, and lots of people with them are proud to show them off! However, there is one major problem in the prosthetic field, and that is cost. Due to intensiv…
CSEF · 2026
Plant Biology (Senior Division)
Climate-change induced drought stress has intensified the need for sustainable and resilient agricultural practices. Among various techniques, biopriming with plant growth–promoting rhizobac…
CSEF · 2026
Plant Biology (Junior Division)
Two contributors to global warming are the disposal of keratinous waste in landfills and the chemical synthesis of nitrogen fertilizers. These create greenhouse gases, pollutants, and health…
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…
CSEF · 2026
Mathematical Sciences (Senior Division)
Airlines have increasingly introduced flexible refund policies that allow passengers to cancel tickets and receive time-limited travel credits. These policies introduce additional uncertaint…
CSEF · 2026
Applied Mechanics (Senior Division)
Robotic fish for ocean exploration face challenges of low energy efficiency. Traditional propeller propulsion systems consume high energy and cause significant disturbance to marine life. In…
CSEF · 2026
Biochemistry/ Molecular Biology (Senior Division)
Focal Cortical Dysplasia (FCD) causes epilepsy in 4 million newborns yearly. Treatments are surgical removal of malformed brain tissue, which fails for 40% of patients and causes permanent c…
CSEF · 2026
Medicine & Physiology (Senior Division)
For patients with end-stage heart failure, receiving a heart transplant (HTx) increases their one-year survival chances by nearly fourfold. With 20% experiencing depression and 48.9% waiting…
CSEF · 2026
Behavioral & Social Sciences (Senior Division)
Abstract- Currently, 11.7 million people worldwide are affected with Parkinson’s disease, a neurodegenerative movement disorder of the central nervous system, in which dopamine-producing cel…
CSEF · 2026
Plant Biology (Junior Division)
For our project we wanted to see if there was a difference in old growth redwood forests tree and shrub diversity between high elevation and low elevation. Our hypothesis was that low elevat…
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…