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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
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
Here's an astronomy project idea from Dr. James Pierce, a professor in the Astronomy Program at Minnesota State University, Mankato: "Determine the length of twilight at different times of the year by observing the time at which certain bright stars first appear and comparing with the sunset time. Beware of variations due to stars appearing at different altitudes. Try using Polaris as a standard. Also note the time at which automatic streetlights turn on. Determine how soon after sunset stars… Read more
Astro_p024
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Time Required Very Long (1+ months)
Science Fair Project Idea
Plastics are made of polymers, chemical structures containing many repeated subunits. How does the polymer type of a plastic affect the biodegradability of the plastic? Do research on how plastic is made and what types of polymers are used for making different plastics. Can you learn to make your own plastic? What materials can you use for making plastic that is biodegradable? Test biodegradability by burying plastic samples for different lengths of time. (Kadar, 2004) Reducing solid waste… Read more
MatlSci_p034
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Time Required Very Long (1+ months)
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: ). 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 hair samples of equal length to construct… Read more
MatlSci_p035
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Time Required Short (2-5 days)
Science Fair Project Idea
A solution consists of a solute dissolved in a solvent. A solution is saturated when no additional solute will dissolve in it. Can a saturated solution of sodium chloride dissolve any Epsom salts? Can a saturated solution of Epsom salts dissolve any sodium chloride? How does solubility vary with temperature? How does solubility vary with the surface area of the solute? Design experiments to find out! (Gardner, 1999, 16-17, Stretton, 2004) Read more
Chem_p038
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Time Required Average (6-10 days)
Science Fair Project Idea
The sustainability of our planet's resources ultimately depends upon our actions as citizens. How much we drive, what we eat, whether we have pets, and whether we recycle are all individual actions that affect the sustainability of the Earth's resources. Learn how ecological footprinting works and figure out how big your footprint is. How big is your family's footprint? Your school? A local business? Can you propose ways to increase or decrease the size of your ecological footprint? Develop… Read more
EnvSci_p039
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Time Required Long (2-4 weeks)
Science Fair Project Idea
When the punter is trying to hit the "coffin corner" (within the opposing team's 10-yard line), out of bounds, what is the best angle to kick the ball for correct distance and maximum "hang time?" (For more information on the physics involved, see: Gay, 2004, Chapters 4 and 5.) Read more
Sports_p027
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Time Required Average (6-10 days)
Science Fair Project Idea
How much difference does the spiraling motion of a well-thrown football make on the distance of the throw (compared to wobbling, or end-over-end motion of the ball)? Think of a way to reproducibly produce the desired ball motion and launch it with a constant force to find out. (For more information on the physics, see Gay, 2004.) Read more
Sports_p028
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Time Required Average (6-10 days)
Science Fair Project Idea
When the punter is trying to hit the "coffin corner" (within the opposing team's 10-yard line), out of bounds, what is the best angle to kick the ball for correct distance and maximum "hang time?" (For more information on the physics involved, see: Gay, 2004, Chapters 4 and 5.) Read more
Phys_p044
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Time Required Average (6-10 days)
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