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Science Fair Project Idea
Try different wind turbine/propeller (chord length, pitch) designs by making models from balsa wood. Connect the spinning axle to a DC motor and measure the voltage produced across a resistor to measure power output. Use fan as wind source. (Judge, 2004) Read more
Aero_p029
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Time Required Average (6-10 days)
Science Fair Project Idea
thumbnail This is a rockin' project for guitarists with an interest in the physics behind the music. Have you ever wondered why the pitch of the note changes when you fret the string? You can find out for yourself with this project on the fundamental physics of stringed instruments. Read more
Music_p010
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Time Required Very Short (≤ 1 day)
Prerequisites To do this project, you will need a guitar (or other stringed instrument). You'll need to know enough about playing the instrument to produce clear, ringing tones by picking (or plucking) the string while changing its effective length by fretting (or fingering) it.
Material Availability Readily available
Cost Average ($50 - $100)
Safety No issues
Science Fair Project Idea
thumbnail The renowned pianist Vladimir Horowitz once said, "The most important thing is to transform the piano from a percussive instrument into a singing instrument." Check out this project to learn about sympathetic vibrations, one way to make piano strings sing. Read more
Music_p012
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Time Required Very Short (≤ 1 day)
Prerequisites To do this project, you'll need a piano which is in tune. You'll also need to know enough about the piano to find notes by their letter names.
Material Availability Readily available
Cost Very Low (under $20)
Safety No issues
Science Fair Project Idea
thumbnail In this project, you'll investigate the physics of standing waves on guitar strings. You'll learn about the different modes (i.e., patterns) of vibration that can be produced on a string, and you'll figure out how to produce the various modes by lightly touching the string at just the right place while you pick the string. This technique is called playing harmonics on the string. By the way, we chose a guitar for this project, but you can do the experiments using any stringed instrument, with… Read more
Music_p009
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Time Required Very Short (≤ 1 day)
Prerequisites To do this project, you'll need a guitar (or other stringed instrument). You'll need to know enough about playing the instrument to produce clear harmonics by picking (or plucking) the string while lightly touching it in just the right place.
Material Availability Readily available
Cost Average ($50 - $100)
Safety No issues
Science Fair Project Idea
A technique often used in wind tunnels is to introduce smoke in front of the airfoil that is being tested. The smoke comes from regularly-spaced point sources, and the wind flow in the tunnel spreads it out into parallel lines, called streamlines. The streamlines make it possible to visualize the airflow over the airfoil. When the lines continue smoothly over and past the airflow, they show that the flow remains laminar, and that the airfoil is creating very little drag. When the… Read more
Aero_p026
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Time Required Long (2-4 weeks)
Science Fair Project Idea
The Game of Life is the invention of the mathematician John Conway. It is a cellular automaton, consisting of a grid of squares that turn "on" or "off" depending on simple mathematical rules that involve neighboring squares. Depending on how the grid is first set up (i.e., the initial conditions), various interesting patterns appear. Can you write a Game of Life program (in JavaScript or any other computer language of your choice)? Can you think of ways to alter the rules that result in… Read more
CompSci_p030
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Time Required Average (6-10 days)
Science Fair Project Idea
thumbnail In our , we provided you with a template file that included default material properties and physics simulation settings. These settings include friction, gravity, and temperature — all of which can drastically change how fast your robots move. However, we did not explain what exactly all these physics simulation settings meant, or how to change them. You can access the physics settings through the Physics Settings tab after entering the Physics Sandbox mode, as shown in Figure 1 below: … Read more
Robotics_p019
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Time Required Short (2-5 days)
Prerequisites Familiarity with VoxCAD software. We recommend completing our [# ProjectIdea Name="Robotics_p016" Value="HtmlAnchor" HtmlText="introductory VoxCAD project" #] first.
Material Availability This project requires the free VoxCAD software and a computer running Microsoft® Windows®.
Cost Very Low (under $20)
Safety No issues
Science Fair Project Idea
Did you know that you can make a simple hygrometer (a device for measuring the relative humidity of the air) with hair? This type of hygrometer is easy to build (for instructions, see: http://www.fi.edu/weather/todo/hygrometer.html). Does the type of hair used in the hygrometer affect the accuracy of the results? Do some types of hair respond faster than others? Do some types of hair give a larger (or smaller) response? You could get hair samples from classmates, or a local beauty shop. Use… Read more
MatlSci_p035
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Time Required Short (2-5 days)
Science Fair Project Idea
You probably know that you can use iron filings to reveal the magnetic field produced by a strong magnet. If you sandwich the iron filings between pieces of waxed paper, you can make a permanent record of your magnetic experiments (Gardner, 2004, 66). Cover the wax paper sandwich with a layer of brown paper (from a roll, or cut open a paper shopping bag), and then (with an adult's help) use a hot, dry iron to seal the waxed paper together. You will have to experiment a little with your iron… Read more
Elec_p043
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Time Required Short (2-5 days)
Science Fair Project Idea
Imagine a symmetrical grid of nine points superimposed over the ball. Kicking the ball squarely on the center point imparts no spin, but kicking on any of the other points will impart spin on the ball. How will the resulting spin affect the trajectory of the ball for each of the 8 outer grid points? Kicking the ball with a sliding motion of the foot is another way to impart spin. Once you've made your predictions, you can set up to test them with a soccer ball, video camera and a tape… Read more
Sports_p031
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Time Required Average (6-10 days)
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