Search past science fair projects

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.

725 projects · showing 91–120 CSEF — clear fair filter 2026 — clear year filter Clear all

CSEF · 2026

Bending Beams

Physics & Astronomy (Junior Division)

Bending Beams is a project to see how different liquids affect light refraction. The hypothesis is that denser liquids will refract more than liquids that are less dense. A homemade light re…

CSEF · 2026

Biodegradable Plastic

Earth & Environmental Sciences (Junior Division)

Our project investigated on how we can find a better replacement to synthetic plastics. Our reason for this was to better the environment and make our effort in helping the world. For this p…

CSEF · 2026

Bio-Sorbent for Selective Water Remediation

Environmental Engineering (Senior Division)

Widespread contamination of surface and groundwater systems from heavy metals, excess nutrients, and other hazardous pollutants has intensified the need for sustainable water remediation tec…

CSEF · 2026

Birds Eye View

Zoology (Junior Division)

We chose this project because we were curious whether the color of nectar really matters to hummingbirds. We decided to run an experiment for a week with three feeders each a different color…

CSEF · 2026

Blood, Blue, and Beyond

Chemistry (Junior Division)

The purpose of this experiment is to test how the temperature of the water mixed in the luminol compound affects the amount of light produced in the luminol reaction. This mixture is used ve…

CSEF · 2026

Blue in Fruit Juice

Biochemistry/ Molecular Biology (Junior Division)

Title: Blue in Orange Juice This project studied how quickly vitamin C degrades when oranges are stored in a freezer, refrigerator, or at room temperature. It was hypothesized that freezing…

CSEF · 2026

Bone Density: Rustic vs. Layer Chicken

Zoology (Junior Division)

Have you ever wondered why some birds have weaker bones than others? In this experiment, I wanted to figure out if chickens that lay eggs would have lower bone density because they used calc…

CSEF · 2026

Building A Solar-Powered Water Pump

Applied Mechanics (Junior Division)

For our project, we built four prototypes for a DIY solar-powered water pump. Irrigation systems in large farms are not being used with energy efficient and environment friendly sources, so…

CSEF · 2026

CardioScope

Medicine & Physiology (Senior Division)

Cardiovascular disease (CVD) is one of the leading causes of morbidity worldwide, affecting over half a billion individuals globally and approximately 127.9 million adults in the United Stat…

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