Mechanical Engineering
Science Fair Projects
Ideas and Sample Projects by Grade Level


Home Experiments Engineers Warning!
Primary School - Grades K-3
P=Project   E=Experiment
Elementary School - Grades 4-6
P=Project   E=Experiment
Study how different arrangements of paper (representing carbon nanostructures) result in materials with different strengths by folding, rolling, and stacking origami paper. [E]
Build a water clock that tracks three hours of time. [E]
Create a process flow to accomplish a task (like emptying a dishwasher) accurately, in as little time as possible, and with a minimum of mistakes. [E]
Build an efficient Archimedes screw pump, using commonly found materials. [E]
Figure out how to calculate gear ratios by putting the gears together. [E]
Build a machine that will turn off an alarm clock. [P]
Build and Research Steam Engines [P]
How much force is needed to pound nails into different kinds of wood? [E]
Build and research your own clinometer: [E]
Investigate the effect of packaging material properties on shock levels and protection against shock damage. [E]
Determine if brittle materials break in a similar pattern. [E]
How works the bullet proof vest? [E]
Which nails can resist the most force? [P]
Simple Machine Physics Concepts Science Fair Projects
Car & Vehicle Science Fair Projects
Arrow & Projectile Science Fair Projects
Sports Engineering Science Fair Projects
Toy and Game Design Science Fair Projects
String, Rope and Rubber Band Science Fair Projects
Middle School - Grades 7-9
P=Project   E=Experiment
What Effect Does the Size of a Magnet Have on its Ability to Serve as a Frictionless Bearing? [E]
Comparing the Strength of Wooden Joints Made with Nails, Screws, and/or Glue [E]
Crash! Can Cell Phones Survive a Drop Test? [E]
Design and build your own model ski lift to transport an object from a start area to a finish area. [E]
Investigate the relationship between the number of lit candles under a candle carousel, and how fast the carousel spins. [E]
The Effect of Vane Tilt Angles on the Speed of a Revolving Lantern [E]
Choose an item to redesign to be ergonomic. [E]
Apply the principles of hydraulics in building a working model of a hydraulic lift. [E]
Determine whether commercially available bio-based lubricants offer viable alternatives to petroleum-based lubricants when all relevant factors [E]
The Most Force Absorbent Material [E]
Using the Jamming Principle to Construct a Universal Gripper [E]
See if treating Kevlar fabric with magnetorheological (MR) fluid, improves protection compared to untreated Kevlar used in body armor. [E]

Make a cheap weatherproof sleeping bag for homeless people. [P]
How to prevent model train derailments by using a spring switch. [P]
Determine if childproof containers are really safe from children. [E] [E]
Can Smaller Eggs Support More Weight? [E]
Biomimetic Water Striders: Testing the Load-Bearing Capacity of Static Water Strider Models [E]
Modify a mass manufactured poultry feeder in order to use less food, reducing stale and wasted feed. [E]
Use of a lever and interference of light to measure very tiny weights. [E]
Which packing material provides the best protection for fragile items? [E]
Determine if different brands of bubble gum produce the same size of bubble by measuring circumference and diameter. [E]
Which insole lasts the longest under constant compression? [E]
Test Load Carrying Capacity of Cylindrical Shells [E]
Measure, by using a light sensor, the vibrational frequency of spring/mass combinations using springs of different stiffness and a graded range of masses for each spring. [E]
Effect of Trebuchet Arm Length or Counterweight Mass on Projectile Distance [E]
Measure the force and the work required to lift the same load with different arrangements of pulleys. [E]
Investigate how far equally-weighted objects with different surface textures will slide when propelled across surfaces with different textures. [E]
Build a small dynamometer that could measure the output power, torque, and RPM of a HO scale slot car. [E]
Determine whether it is possible to harness wasted gravitational potential energy and convert it into easily accessed kinetic energy. Application of this principle is a garbage can that can bring itself out to the curb when full and back to the house when empty. [E]
Hinged vs. Fixed Trebuchet Counterweight Design [E]
Compare different types of prosthetics (control cable, electric). [E]
The effect of damping on a shock absorber [P]
Will harp traps be more effective at catching bats with a higher wing loading than bats with a lower wing loading because bats with a lower wing loading fly slower and are more maneuverable? [P]
Simple Machine Physics Concepts Science Fair Projects
Car & Vehicle Science Fair Projects
Arrow & Projectile Science Fair Projects
Sports Engineering Science Fair Projects
Toy and Game Design Science Fair Projects
String, Rope and Rubber Band Science Fair Projects
High School - Grades 10-12
P=Project   E=Experiment
Ergonomics Experiments [E]
Does the Direction of a 3D-Print Matter? [E]
A new cheap device that harvests and threshes crops built from a modified bicycle. [P]
The physics of transferring power through moving gears. [E]
The Effect of Differing End Mill Length and Diameter on Dimensional Control While Cutting Steel with an End Mill [E]
Thermally Accelerated Vacuum Dryer: Method for Direct Extraction of Energy from Temperature Differences in Environment [E]
Using sound pressure waves to extinguish fire. [E]
Can you build a perpetual motion machine (over-unity device)? [E] [E]
Investigating Resonance and Analyzing the Effects of Tension in a Multi-Pendulum System [E]
Build a pump that uses the power of water flowing downhill to deliver a supply of water to a much higher level. [E]
Follow in the steps of Johannes Gutenberg - Build your own movable type printing press [E]
Follow in the steps of Eli Whitney - Build your own cotton gin [E]
Simple Machine Physics Concepts Science Fair Projects
Car & Vehicle Science Fair Projects
Arrow & Projectile Science Fair Projects
Sports Engineering Science Fair Projects
Toy and Game Design Science Fair Projects
Useful Links
R=Resource
Science Fair Projects Resources [R]
Citation Guides, Style Manuals, Reference [R]
Safety Resources [R] [R]
Engineering Science Fair Books

                   

Engineering Projects
Engineering Topics Related Subjects
Aviation & Aerodynamics
Airplanes
Propellers, Rotors, Blades
Wings and Winglets
Rockets
Kites, Gliders, Balloons
Arrows & Projectiles
Ships & Boats
Musical Instruments
Cars & Vehicles
Car Fuel, Propulsion
Car & Vehicle Engines
Cameras & Photography
Digital Cameras
Buildings & Construction
Green Building
Bridges
Building Materials
Earthquake Building
Concrete
Wood & Timber
Machines
Mechanical Engineering
Toys and Games
Strings, Ropes, Bands
Sports Engineering
Water Engineering
Physics
Transportation

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