CSEF projects, 2002–2026

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.

Years

Category breakdown

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.

Projects

17387 projects · showing 481–510

CSEF · 2026

PotBot- Your Personalized Watering Assistant

Environmental Engineering (Track 2) (Junior Division)

For my project, I am creating a moisture detection device that I decided to name PotBot, that lets you know when your plant needs to be watered! Every year, 35% to 50% of houseplants die fro…

CSEF · 2026

Project SkyFlow

Applied Mechanics (Junior Division)

In aviation, safety has always been paramount, with airfoils (essentially the wings of the plane) at the center of discussion, as they have led to numerous crashes/threats to safety in the p…

CSEF · 2026

Protecting Cells from UV Damage

Biochemistry/ Molecular Biology (Junior Division)

Since ultraviolet (UV) radiation from sunlight damages the DNA of living cells, protecting cells is important to lead a healthy life. One way cells could be protected is through the use of n…

CSEF · 2026

Purple Roots

Earth & Environmental Sciences(Senior Division)

Our project goal is to find out how effective water hyacinth roots are at removing microplastics from the water. We hypothesize that water hyacinth will be effective at removing microplastics,…

CSEF · 2026

Putting the "De" in Decaf

Chemistry (Junior Division)

Extraction and purification of caffeine is a common low-cost organic chemistry lab. Many protocols include recrystallization for purification and many use thin layer chromatography (TLC) to…

CSEF · 2026

Quantifying Variability in AI Outputs

Mathematical Sciences (Junior Division)

Artificial intelligence (AI) has become quite common and can be found doing many different things. Around 73% of Americans show a willingness to incorporate AI into their daily lives (Pew Re…

CSEF · 2026

Rain or Shine, Stop on Time!

Electronics & Electromagnetics (Junior Division)

Autonomous vehicles often use time-of-flight (ToF) sensors that emit near-infrared light and measure the return time to estimate the distance to obstacles. In extreme weather and lighting, w…

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