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 1381–1410 Engineering — clear category filter Clear all

CSEF · 2005

The Workings of an Ancient Trebuchet

Applied Mechanics/ Structures & Mechanisms/ Manufacturing

Objectives/Goals The purpose of my experiment was to determine the impact on the distance a projectile is thrown from a trebuchet by changing the length of the throwing arm and the mass of t…

CSEF · 2005

Which Lubricants Have the Least Friction?

Applied Mechanics/ Structures & Mechanisms/ Manufacturing

Objectives/Goals To determine which lubricant has the least friction. Methods/Materials First, I bought a long strip of sheet metal then cut it into a rectangle. Another metal sheet was cut…

CSEF · 2005

Wimshurst Influence Machine

Applied Mechanics/ Structures & Mechanisms/ Manufacturing

Objectives/Goals To first build a reproduction of an 1883 Wimshurst Influence Machine that would produce static electricity without the use of friction. Secondly, to improve on the design of…

CSEF · 2004

A Revolution in Electrostatic Motors

Applied Mechanics/ Structures & Mechanisms/ Manufacturing

Objectives/Goals I used Plexiglas sheets and aluminum to make these motors. Due to previous problems with building motors, I designed new systems for cutting parts that improve precision and…

CSEF · 2004

A Tap Dancing Machine for the Hearing Impaired

Applied Mechanics/ Structures & Mechanisms/ Manufacturing

Objectives/Goals I set out to invent a device that enables the hearing impaired and the deaf to appreciate the rhythm of a tap dance, while maintaining a great performance quality for the he…

CSEF · 2004

Bullets and Phonebooks

Applied Mechanics/ Structures & Mechanisms/ Manufacturing

Objectives/Goals The goal of my project was to find out what affects bullet penetration the most: velocity, mass or bullet construction. Methods/Materials I used 12 variations of the .243 ca…

CSEF · 2004

Can I Make Lead Float?

Applied Mechanics/ Structures & Mechanisms/ Manufacturing

Objectives/Goals I wanted to see if I could apply Archimedes Principle to something as heavy as lead. Methods/Materials Procedures: 1. Collect materials for experiment. I looked for lead she…

CSEF · 2004

Can You Throw with a Counterweight?

Applied Mechanics/ Structures & Mechanisms/ Manufacturing

Objectives/Goals My objective is to see if the mass of an object affects how far it travels out of a trebuchet. Methods/Materials 1 Trebuchet; 1 25 Gram Projectile; 1 50 Gram Projectile; 1 7…

CSEF · 2004

Catapulting Our Way into Science

Applied Mechanics/ Structures & Mechanisms/ Manufacturing

Objectives/Goals The objective of this experiment is to demonstrate the relationship between the distance traveled for similar shaped round projectiles of different weight, volume, and densi…

CSEF · 2004

Effect of Friction on Objects in Motion

Applied Mechanics/ Structures & Mechanisms/ Manufacturing

Objectives/Goals This study was conducted to determine whether objects of different materials (but equally weighted) would travel the same relative distance as the material of the sliding su…

CSEF · 2004

Effect of Surface on Speed

Applied Mechanics/ Structures & Mechanisms/ Manufacturing

Objectives/Goals Do different surfaces affect how long it takes a model car to cross a certain distance? Methods/Materials Accelerate a model car down a ramp made of wood covered with styrof…

CSEF · 2004

Fractography: The Way Things Break

Applied Mechanics/ Structures & Mechanisms/ Manufacturing

Objectives/Goals I wanted to know if brittle materials broke in a pattern, and if so, whether similar materials have similar patterns of breaking. My hypothesis was that each material would…

CSEF · 2004

Glass Fracture

Applied Mechanics/ Structures & Mechanisms/ Manufacturing

Objectives/Goals I hoped to find similar ways in fracturing with glasses at room temperature, freezing temperature, and boiling temperature of water. Since the glass was the same size and th…

CSEF · 2004

Got Traction?

Applied Mechanics/ Structures & Mechanisms/ Manufacturing

Objectives/Goals The objective of the project is to determine whether the cost of a basketball shoe affects the co-efficient of static friction the sole of the shoe possesses. Methods/Materi…

CSEF · 2004

How Loud Is Too Loud?

Applied Mechanics/ Structures & Mechanisms/ Manufacturing

Objectives/Goals My experiment compares the different volumes produced by playing music on five different stereos. For my project I learned about sound and sound waves. Other topics I studie…

CSEF · 2004

Increasing the Deflection of Concrete

Applied Mechanics/ Structures & Mechanisms/ Manufacturing

Objectives/Goals My primary focus in this experiment was to see if I could increase the deflective properties of concrete by strengthening the crystaline stucture of concrete through the add…

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