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Science Fair Project Idea
thumbnail In physics class, you have probably rolled your eyes at some point after being assigned a "projectile motion" homework problem where you use equations to predict how a ball will move through the air. This experiment will show you just how fun that problem can be by using a real catapult to launch a ball and videotaping it as it flies along its path. Then, you will analyze the video and compare it to what the equations predicted. If you have ever wondered if those equations in your physics… Read more
Phys_p089
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Time Required Average (6-10 days)
Prerequisites This project requires a basic understanding of algebra, trigonometry (sine and cosine functions), and physics (kinematics—two-dimensional projectile motion), or the willingness to learn about these subjects on your own.
Material Availability This project requires access to a video camera (not included in the cost estimate) and the purchase of a catapult kit. (See the Materials and Equipment list for details.)
Cost Average ($40 - $80)
Safety Minor injury possible. Never aim the catapult at anyone, and keep your hands and fingers clear of the moving catapult arm when launching the catapult.
Science Fair Project Idea
Hooke's law says that the opposing force of a spring is directly proportional to the amount by which the spring is stretched. How accurately Hooke's law describe the behavior of real springs? Can springs be used to make accurate scales for weighing objects? Spring into action and find out for yourself with this project. Read more
ApMech_p027
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Time Required Very Short (≤ 1 day)
Prerequisites None
Material Availability Readily available
Cost Low ($20 - $50)
Safety Minor injury possible
Science Fair Project Idea
thumbnail Many things in nature are periodic: the seasons of the year, the phases of the moon, the vibration of a violin string, and the beating of the human heart. In each of these cases, the events occur in repeated cycles, or periods. In this project you will investigate the periodic motion of a spring, using a mini Slinky@reg;. Basic physics will then allow you to determine the Hooke's Law spring constant. Your analysis will also yield the effective mass of the spring, a factor that is important in… Read more
Phys_p064
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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
thumbnail If you have seen any of the "Star Wars" movies, then you probably remember when Jedi knights like Luke Skywalker and Obi-Wan Kenobi used "The Force" to push, pull, and even throw objects — including some helpless battle droids. Have you ever wished you could do that in real life? In this robotics project, you will build and program a LEGO® robot that you can push and pull using an "invisible force" — almost like a real Jedi! We make no promise that you will be taking down the… Read more
Robotics_p013
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Time Required Average (6-10 days)
Prerequisites You should know how to build a basic car with a LEGO Mindstorms kit, and also be familiar with basic programming in the Mindstorms software (NXT-G or EV3).
Material Availability This project requires a LEGO Mindstorms EV3 or NXT kit, and a computer with the appropriate programming software. See the Materials and Equipment list for details.
Cost Very High (over $150)
Safety No issues.
Science Fair Project Idea
thumbnail Are you interested in things like prosthetic limbs and artificial joints that can help people with disease or injury to lead a normal life? Or maybe you're interested in sports medicine or physical therapy? Either way, this project could be a good match for you. Find out how the tension on the knee joint changes as a function of angle by building a simple mechanical model. Read more
HumBio_p006
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Time Required Long (2-4 weeks)
Prerequisites To do this project, you should be handy with basic woodworking tools
Material Availability Specialty item (guitar string tuning mechanism)
Cost Average ($50 - $100)
Safety Adult supervision required (power tools used for assembly)
Science Fair Project Idea
thumbnail Everyone knows electricity can create heat, especially because our electrical appliances tend to warm up when turned on. But wouldn't it be cool to do the reverse — generate electricity from heat? In this science project, you will study why it happens, measure the effect, and then use the phenomenon to build your own device, a thermocouple thermometer, that will enable you to convert heat into electrical energy. Read more
Elec_p072
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Time Required Short (2-5 days)
Prerequisites Understanding of or willingness to look into the concepts of temperature, heat, electrical current, electrical potential, and different theories of modeling electric conductors.
Material Availability Readily available.
Cost Low ($20 - $50)
Safety No issues.
Science Fair Project Idea
thumbnail If you have ever tried to hit a target (such as a trash can) with a wad of paper, you know that aim is everything. But it is not always easy to get it right every time! Missing is not that big a deal with a wad of paper, but what if you were in an invading army in the Middle Ages, using a catapult to hurl huge stones and knock down castle walls? For a successful invasion, it would be important to know exactly how far, and how reliably, a catapult could launch a projectile. In this project you… Read more
Math_p046
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Time Required Average (6-10 days)
Prerequisites An introductory-level understanding of statistics (mean, standard deviation, and the normal distribution) is helpful, but not required for completing this project.
Material Availability Requires catapult kit. See the Materials and Equipment list for details.
Cost Average ($40 - $80)
Safety Do not aim the catapult at people or breakable objects; minor injury possible.
Science Fair Project Idea
thumbnail Many materials expand when heated and contract when cooled. What do you think will happen to the elasticity (stretchiness) of a rubber band when it is heated or cooled to various temperatures? Read more
ApMech_p026
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Time Required Average (6-10 days)
Prerequisites None
Material Availability This project requires some specialty items. They can all be purchased online, or you may be able to borrow them from school. See the Materials and Equipment section below for details.
Cost Low ($20 - $50)
Safety Adult supervision is required for heating and pouring boiling water.
Science Fair Project Idea
thumbnail What do rocks and clocks have in common? Both keep track of time. Yes, radioactive isotopes present in rocks and other ancient material decay atom by atom at a steady rate, much as clocks tick time away. Geologists use those radioactive isotopes to date volcanic ash or granite formations like the giant Half Dome in Yosemite National Park. Anthropologists, archeologists, and paleontologists also use radioactive isotopes to date mummies, pottery, and dinosaur fossils. Does this sound abstract… Read more
Geo_p044
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Time Required Short (2-5 days)
Prerequisites None.
Material Availability Readily available.
Cost Low ($20 - $50)
Safety No issues.
Science Fair Project Idea
thumbnail Here's a sports science project that shows you how to use correlation analysis to choose the best batting statistic for predicting run-scoring ability. You'll learn how to use a spreadsheet to measure correlations between two variables. Read more
Sports_p003
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Time Required Short (2-5 days)
Prerequisites To do this project you must be comfortable using a spreadsheet program like Microsoft Excel®, or be willing to learn how to use one.
Material Availability Readily available
Cost Very Low (under $20)
Safety No issues
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