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.

1624 projects · showing 181–210 Engineering — clear category filter Clear all

ISEF · 2025

From Crude to Extrude: A Novel Approach to Combining Pultrusion and Extrusion Technologies Into a Single Filament Production System to Recycle PET Bottle Waste and 3D Printing Purge Materials Into Additive Manufacturing Filament

Engineering Technology: Statics & Dynamics First Award

With the increased use of 3D printers, there exists a need to recycle filament purge and failed prints. Traditionally, filament is produced via shredded material fed through an extrusion mac…

ISEF · 2025

Heat Exchanger Design and Optimization

Engineering Technology: Statics & Dynamics

The Shell and Tube Heat Exchanger is widely used in high-pressure industrial applications such as petrochemical processing and offshore oil rigs. This study examines the thermal performance…

AJAS · 2025

Ion Drive Optimization

Engineering (inferred)

This experiment tested how the efficiency of an ion drive varies depending on the distance between the two electrodes. An ion drive is a propulsion engine that utilizes ionized gas and accel…

ISEF · 2025

JETSTREAM: Building the World's Fastest Drone

Engineering Technology: Statics & Dynamics

Jetstream is the world’s fastest drone, flying at 40% of the speed of sound. Jetstream paves the way for future high-speed-drone design, enabling future drones to tackle a new realm of high-…

ISEF · 2025

Shooting for the Stars

Engineering Technology: Statics & Dynamics

Each time a rocket is launched into the Earth's atmosphere it uses several thousands of gallons of chemical fuel per second. These chemical fuels, when being used in such large quantities, c…

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