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Science Fair Project Idea
Take a deep breath: freshly baked cookies, smoke from a wood fire, or a rose—your nose is an amazing smell detector! Your sense of smell can not only identify a huge variety of odors, but it is also incredibly sensitive. Think about how easily you can detect if someone in your neighborhood has a barbecue just by smelling the hints of smoke from the grill far away. How strong or weak you perceive an odor depends on its concentration. What do you think is the lowest concentration of a… Read more
HumBio_p046
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Time Required Average (6-10 days)
Prerequisites [# Fragment Name="ProjectIdeas.Human.Subjects.Prerequisites" Value="Html" #]
Material Availability This project requires the use of several scents that are part of a kit that can be purchased from Amazon. See the Materials and Equipment list for details.
Cost Average ($40 - $80)
Safety No issues.
Science Fair Project Idea
Have you ever heard that two phone books with the pages interleaved are impossible to pull apart? This might seem crazy, right? It is not that hard to slide a sheet of paper off the top of a stack of paper. How much friction can there really be between sheets of paper? In this experiment, you will use pads of sticky notes instead of phone books. How much weight can they support when you interleave the pages? Do you think you will be able to pull them apart by hand? The results might surprise… Read more
Phys_p103
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Time Required Short (2-5 days)
Prerequisites None
Material Availability Readily available
Cost Average ($40 - $80)
Safety Adult supervision required for testing heavier weights.
Science Fair Project Idea
Put your engineering skills to the test to see if you can build a machine—powered by nothing but gravity—that will automatically sort out two different sizes of plastic spheres. That might seem like a strange task, but have you ever used a coin sorter to separate pennies, nickels, dimes, and quarters? How about using a sifter in the kitchen to separate fine grains of flour or sugar from bigger lumps? Machines that can automatically sort objects or particles of different sizes are… Read more
ApMech_p051
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Time Required Short (2-5 days)
Prerequisites None
Material Availability Readily available
Cost Low ($20 - $50)
Safety Adult supervision recommended for cutting materials that can create sharp edges, like plastic cups.
Science Fair Project Idea
A simple circuit and a servo motor are all you need to turn any work of art into an interactive moving creation that is happy to see you. Light sensors see your shadow as you walk past your artwork and make a servo motor move back and forth. Waving arms? Turning heads? It is all up to you! Read more
Robotics_p029
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Time Required Average (6-10 days)
Prerequisites None
Material Availability Readily available
Cost Low ($20 - $50)
Safety Depending on the crafting you do for your sculpture, the project may require craft knives or other items that should be used carefully and with supervision, as needed.
Support for Science Buddies provided by:
Science Fair Project Idea
Whether you have already tried the Science Buddies Build a Paper Speaker activity or the project, or you just like music and are interested in exploring more about the science of sound, then this project is for you. You probably know that sound waves can have different frequencies. If not, you can read more about that in the background section of the project. The range of human hearing is typically about 20 hertz (Hz) to 20,000 Hz. Frequencies at the lower end of this… Read more
Phys_p102
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- Less Details
Time Required Average (6-10 days)
Prerequisites None
Material Availability Specialty electronics items required.
Cost Average ($40 - $80)
Safety Always keep speaker volume at safe levels to avoid hearing damage.
Science Fair Project Idea
Do you know that many consumer products, such as sports clothes, cosmetics, and even food containers contain tiny silver particles? These so-called nanoparticles—usually 1–100 nanometers (a billionth of a meter) in size—are toxic to bacteria and fungi and therefore, are used to prevent them from growing on everyday items you use. But what happens if the silver nanoparticles get into the water; for example, when you wash off your makeup or clean your clothes? Do they… Read more
EnvSci_p064
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Time Required Average (6-10 days)
Prerequisites None.
Material Availability This project requires materials which need to be specially ordered. See the Materials and Equipment list for details.
Cost High ($100 - $150)
Safety No issues.
Science Fair Project Idea
If you like listening to music and making crafts, this is a great project for you. You will learn how to make a completely functional speaker that you can use to listen to real music...out of paper! Along the way, you will learn about the science behind how a speaker works. Speakers depend on magnets to create sound—does adding more magnets make the sound louder? Try this project to find out! This project is compatible with Google's app, which allows you to collect data using your… Read more
Phys_p101
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- Less Details
Time Required Average (6-10 days)
Prerequisites None.
Material Availability Specialty electronics materials required. See the Materials list for details.
Cost Average ($40 - $80)
Safety No issues.
Science Fair Project Idea
Would it surprise you to learn that no one knows the exact age of the universe? Astronomers have estimates, and as they gather increasingly precise data and measurements, they continue to refine those estimates to come up with more accurate estimates. In this project, you can look at data about stars in dense groups called globular clusters and come up with your own estimate for the minimum age of the universe. How closely will your estimate match those of other astronomers? Read more
Astro_p042
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Time Required Very Short (≤ 1 day)
Prerequisites Computer skills, including basic spreadsheet skills (such as Microsoft® Excel®)
Material Availability Readily available
Cost Very Low (under $20)
Safety No issues
Science Fair Project Idea
No one likes shots, so why don't we swallow all our medications? In this science project, you will use a model to explore one challenge behind making medications we can quickly swallow, using insulin (a medication taken by some diabetes patients) as an example. Will your medication be functional after spending time in an environment similar to the stomach? Read more
HumBio_p045
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- Less Details
Time Required Very Short (≤ 1 day)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety No issues
Science Fair Project Idea
Soil erosion can cost the world billions of dollars every year by washing pollutants into our streams and rivers and by causing the loss of farmland. What can you do about this problem? Help save the world (and some money!) with nothing more than a few plants! Read more
EnvEng_p037
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- Less Details
Time Required Long (2-4 weeks)
Prerequisites None
Material Availability Readily available
Cost Low ($20 - $50)
Safety No issues
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