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Science Fair Project Ideas

Cutting Edge Areas
Science Buddies Original
Science Fair Project Idea
Have you ever seen a tall sailboat and wondered how they don't flip over when it's windy? Try this project and learn about the physics behind how sailboats stay upright. Read more
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- Less Details
Time Required Very Short (≤ 1 day)
Tinkering
Prerequisites None.
Material Availability Readily available.
Cost Very Low (under $20)
Safety Be careful when poking nails into the cork.
Science Buddies Original
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
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- Less Details
Time Required Short (2-5 days)
Tinkering
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety No issues
Science Buddies Original
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
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- Less Details
Time Required Short (2-5 days)
Tinkering
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
Science Buddies Original
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
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- Less Details
Time Required Average (6-10 days)
Tinkering
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety No issues
Science Buddies Original
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
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- Less Details
Time Required Short (2-5 days)
Tinkering
Prerequisites Experience with Python or another programming language of your choice.
Material Availability This project requires a computer.
Cost
Safety No issues
Science Buddies Original
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 Science Journal app to demonstrate how the data can be picked up by a nearby smartphone. Read more
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- Less Details
Time Required Average (6-10 days)
Tinkering
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 Buddies Original
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
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- Less Details
Time Required Short (2-5 days)
Tinkering
Prerequisites Familiarity with image-editing software, or willingness to learn it.
Material Availability Readily available
Cost Very Low (under $20)
Safety No issues
Science Buddies Original
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
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- Less Details
Time Required Average (6-10 days)
Tinkering
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 Buddies Original
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
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- Less Details
Time Required Short (2-5 days)
Tinkering
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.
Science Buddies Original
Science Fair Project Idea
Do you filter your tap water before drinking? Many commercials claim these filters make your drinking water cleaner and safer. But what, exactly, are these filters doing and is the water really cleaner afterwards? The cleaning power comes from their filling material, called activated carbon. It exists in all kind of forms: powder, granules, foams, and blocks. Do you think it matters what type of activated carbon is inside the filter? In this activity you will investigate whether larger or… Read more
+ More Details
- Less Details
Time Required Short (2-5 days)
Tinkering
Prerequisites None
Material Availability Readily available
Cost Low ($20 - $50)
Safety Avoid dispersing the powdered activated carbon into the air and try not to breathe in the particles.
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Free science fair projects.