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Science Fair Project Idea
Eardrums are membranes inside your ears that vibrate when sound waves hit them. These vibrations are converted into electrical signals and sent to your brain, which allows you to hear sound. The frequency response of your eardrum, or the range of frequencies that will cause it to vibrate, determines your hearing range. Typical human hearing ranges from about 20 Hz up to 20,000 Hz, although the ability to hear high frequencies typically degrades as you get older. Some other animals can… Read more
Phys_p108
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Time Required Short (2-5 days)
Science Fair Project Idea
Water striders (also called water bugs, pond skippers, etc.) are insects that can hop around on the surface of water (Figure 1). Unlike boats or other floating objects that are partially submerged and held up by the resulting buoyant force, water striders are held up by surface tension. Figure 1. Water striders (image credit Isaka Yoji). You can build your own water striders using thin wire (Figure 2). Do some background research about surface tension, and experiment with how… Read more
Phys_p107
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Time Required Very Short (≤ 1 day)
Science Fair Project Idea
Try your hand at this engineering challenge. Can you build a "launcher" device to launch a ball as far as possible and a "receiver" to catch it? Building a receiver provides an extra twist to a traditional catapult project. Add to the challenge by using a limited set of materials to build your machine and calculate a score based on your throw distance and materials used. Read more
ApMech_p052
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Time Required Short (2-5 days)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety No issues
Science Fair Project Idea
How many websites do you have accounts with that store personal information like your name, email, phone number, or mailing address? If the people running these websites are not careful, hackers could gain unauthorized access to, and even change or delete, your information. They can do this using something called SQL injection, which involves entering malicious code into text fields on a website. In this project you will learn how SQL injection works and figure out how to prevent it. Read more
Cyber_p008
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Time Required Short (2-5 days)
Prerequisites Previous experience with programming (any language). To do this project you will need to learn some basic SQL and PHP.
Material Availability Computer with internet access.
Cost Very Low (under $20)
Safety No issues
Support for Science Buddies provided by:
Science Fair Project Idea
Many websites ask you to answer "security questions," like "What is your mother's maiden name?," to recover your account if you ever forget your password or login ID. However, sometimes the answers to those questions are easy to find online. Does this pose a risk to the security of important accounts like email and online banking? Are people even aware that this information about them is available online? In this project, you will investigate how secure people think security questions are, and… Read more
Cyber_p007
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Time Required Average (6-10 days)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety No issues
Science Fair Project Idea
When you hear the word "encryption," you might think about modern computers and things like email and online bank accounts. But did you know that encryption has been around for thousands of years? In this project you will learn about the Caesar cipher, a simple type of encryption that replaces each letter of the alphabet with another letter, and demonstrate how a modern computer can crack this ancient code in just a few seconds. Read more
Cyber_p005
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Time Required Short (2-5 days)
Prerequisites Experience with Python or another programming language of your choice.
Material Availability This project requires a computer.
Safety No issues
Science Fair Project Idea
You might think that one sure-fire way to keep your computer safe from hackers is to disconnect it from the internet entirely. But did you know that even without internet, a computer can transmit data using light, sound, vibrations, or even heat? In this project, you will investigate how a spy or hacker can steal data from an "air-gapped" computer that has no internet connection. You can even use Google's app to demonstrate how the data can be picked up by a nearby smartphone. Read more
Math_p049
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Time Required Average (6-10 days)
Prerequisites None
Material Availability Desktop or laptop computer required. See materials list for details.
Cost Very Low (under $20)
Safety Some methods proposed in this project can cause your computer to overheat if you are not careful. This may damage your computer. See the procedure for details.
Science Fair Project Idea
Wondering what sustainable, high-producing agriculture might look like? This science project explores how analyzing bird's-eye-view pictures of a field can make farmers aware of variations in their fields. Farmers can use this information to optimize their farming practices, or even feed this information to high-tech agricultural equipment so the machines can automatically adjust their actions (like fertilizing or watering) to the needs of a piece of land. Read more
EnvSci_p065
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Time Required Short (2-5 days)
Prerequisites Familiarity with image-editing software, or willingness to learn it.
Material Availability Readily available
Cost Very Low (under $20)
Safety No issues
Science Fair Project Idea
When you go to the supermarket, how do you pick out ripe fruits and vegetables? You might look at their size or color, or feel them for firmness. That might be easy to do when you pick out a half dozen apples, but imagine if you had to examine thousands of apples growing in a field, or strawberries coming down a conveyor belt getting ready for packaging. Suddenly, it is a lot harder to do yourself! What if a machine could pick and sort the produce for you? In this project, you will address part… Read more
Elec_p088
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Time Required Average (6-10 days)
Prerequisites None
Material Availability Electronic circuit components required. See the materials section for details.
Cost Low ($20 - $50)
Safety Short circuits can get very hot. Follow the directions carefully to avoid short circuits.
Science Fair Project Idea
Do you like your hair shiny and beautiful? The key to keeping your hair nice and clean is to use a good shampoo. But with so many different products in the store, how do you know which one works best for you? In this science project, you will put a variety of shampoos to the test, including your own self-made organic shampoo recipes. Do you think these will perform better than a store-bought product? Read more
Chem_p109
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Time Required Short (2-5 days)
Prerequisites None
Material Availability Readily available
Cost Low ($20 - $50)
Safety This project uses acetone for one test. Acetone is a flammable liquid. Keep away from open flames, sparks, or heat. Acetone is irritating to skin and eyes. Be sure to wear safety goggles and gloves. Work in an area with adequate ventilation. Adult supervision is recommended.
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