Science Fair Project Ideas

Science Buddies Original
Science Fair Project Idea
Why do the planets orbit the sun without flying off into space? Do they move in perfect circles or do their orbits take a different shape? And how could you possibly do a science project about any of this—you can't do an experiment with the planets! However, you can build a model of our solar system that demonstrates the concept of gravity, using balls of different sizes to represent the sun and planets. Watch this video for an excellent introduction to the model: … Read more
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Time Required Short (2-5 days)
Tinkering
Prerequisites
Material Availability
Cost
Safety
Science Buddies Original
Science Fair Project Idea
Do you want to build a solar-powered car? How about enter it in a competition and race it against other people's designs? If so, this is the project for you! These instructions will show you how to get started building a solar-powered car that you can enter in a science or engineering fair. No experience needed. If you want, you can even compete in the Junior Solar Sprint, a regional competition for solar-powered cars. Get more information about your regional competition. Are you a… Read more
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Time Required Short (2-5 days)
Tinkering
Prerequisites
Material Availability Requires solar panel and motor. See Materials list for details.
Cost Low ($20 - $50)
Safety No issues
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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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
Look around you. What types of objects do you see in the room? Furniture, lights, a computer, a fan, pencils, books, etc.? Where did they come from? Odds are you did not build them yourself. You or your parents probably bought them at a store. Before that, they were built in a factory somewhere. And even before that, they were probably designed by engineers. You might think of engineers when you think of complex machines like rockets or huge structures like bridges, but engineers also… Read more
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Time Required Very Short (≤ 1 day)
Tinkering
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Material Availability
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Science Buddies Original
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… Read more
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Time Required Short (2-5 days)
Tinkering
Prerequisites
Material Availability
Cost
Safety
Science Buddies Original
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 and following video). Do some background research about surface tension,… Read more
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Time Required Very Short (≤ 1 day)
Tinkering
Prerequisites
Material Availability
Cost
Safety
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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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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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,… Read more
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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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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
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