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Others Like “Tangent Circles and Triangles”

Project Idea
thumbnail If you've ever so much as watched a news clip about a hurricane, you probably know that hurricanes draw their power from warm ocean waters. If that is true, does it mean that hurricanes actually cool the ocean down when they pass through? Can the amount of cooling be measured? Is it proportional to the strength of the hurricane? Find out using data that you can collect yourself using online archives. This project shows you how. Read more
OceanSci_p006
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- Less Details
Time Required Average (6-10 days)
Prerequisites Familiarity with computers and web browsers helps
Material Availability Readily available
Cost Very Low (under $20)
Safety No issues
Project Idea
thumbnail If you like to play Tetris then you might like this project. You'll learn something interesting about the mathematics of complex shapes. Read more
Math_p009
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- Less Details
Time Required Short (2-5 days)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety No issues
Project Idea
Is your computer fast? How quickly do you think it can do 100 million arithmetic problems? Do you think it could beat your friend's computer or another one at school? Try this science project to discover an easy way to measure whether or not your computer is a math whiz. Read more
CompSci_p011
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- Less Details
Time Required Very Short (≤ 1 day)
Prerequisites None
Material Availability Requires computer with Java-enabled web browser (Java Runtime Environment version 1.5 or later) and Internet access
Cost Very Low (under $20)
Safety No issues
Project Idea
thumbnail Want to stretch your imagination? One good way is to try to imagine how far it is to a distant star. How much farther away is it than the moon is from the earth? How much farther away than the earth is from the sun? How long would it take to get there? In this project, you'll learn one way of measuring the distance without leaving Earth. Read more
Astro_p019
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- Less Details
Time Required Short (2-5 days)
Prerequisites You will need a telescope for this project. Experience with geometry is recommended for this project (you need to understand similar triangles).
Material Availability Readily available
Cost Very Low (under $20)
Safety No issues
Project Idea
thumbnail This is an interesting project that explores which geometrical shapes make the strongest bridge truss structures. It is a good introduction to the engineering design process. You'll design three different trusses, and use online simulation software to analyze the distribution of load-bearing forces in each design. Then you'll build and test prototypes of each design. Read more
CE_p006
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Time Required Average (6-10 days)
Prerequisites Excellent computer skills, high school physics course
Material Availability Readily available
Cost Low ($20 - $50)
Safety Use caution with sharp tools when cutting wooden parts to size. Adult supervision recommended for bridge-testing phase.
Project Idea
thumbnail Strike a key on the piano, and you hear the string vibrating. Just about any object vibrates when it's knocked, but how much and how fast? What properties of the material affect the way it vibrates? This project helps you find out. You'll build a simple light-sensing circuit for measuring the frequency of vibrating springs. Read more
ApMech_p015
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- Less Details
Time Required Short (2-5 days)
Prerequisites Windows/PC
Material Availability Readily available
Cost Average ($50 - $100)
Safety No issues
Project Idea
thumbnail Have you ever played a computer game in which a cartoon character, like a dog or a cat, moves or turns when you click on it? Have you ever wondered how characters know how far to move or how far to turn? In this computer science project, you will learn how with a simple (and free) program called Scratch, which will let you write your own computer program that tells a cartoon kitty how to draw shapes. Read more
CompSci_p035
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- Less Details
Time Required Short (2-5 days)
Prerequisites You should have access to a computer with the Internet and room for the Scratch program. Scratch can be downloaded for either Windows (2000 or later) or Mac (OSX 10.4 or later).
Material Availability Readily available
Cost Very Low (under $20)
Safety No issues
Project Idea
thumbnail Although fractal images can be intriguingly complex, fractals are more than just pretty pictures. In this project, you'll explore the mathematical properties of the famous Mandelbrot (illustration at right) and Julia sets. You'll learn about how these images are generated, and about the relationship between the Mandelbrot set and the Julia sets. Read more
Math_p013
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- Less Details
Time Required Average (6-10 days)
Prerequisites Good understanding of algebra, excellent computer skills
Material Availability Computer with Internet access required
Cost Very Low (under $20)
Safety No issues
Project Idea
thumbnail Did you know that you can figure out how much sugar is in a liquid without ever tasting it? In this science fair project, you will learn how to measure the concentration of sugar dissolved in a liquid by using a laser pointer, a hollow prism, and some physics. You will discover how refraction, or the bending of light, is the key to measuring the sugar content of a liquid with a laser pointer. Read more
Phys_p028
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- Less Details
Time Required Short (2-5 days)
Prerequisites None
Material Availability Readily available
Cost Average ($40 - $80)
Safety Adult supervision recommended. Even low-power lasers can cause permanent eye damage. Please carefully review and follow the [# ProjectGuide Name="Advanced.LaserSafetyGuide" Value="HtmlAnchor" #].
Project Idea
thumbnail Here's a project with practical applications for homes with a wireless network. This project shows you how to build and test parabolic reflectors for the transmitters on your network. You may be able to increase the range of your transmitter to cover a location you would like to use but couldn't reach previously. You may also be able to find ways to make your network more secure, by reducing signals transmitted beyond your property. Read more
CompSci_p010
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- Less Details
Time Required Short (2-5 days)
Prerequisites Good computer skills
Material Availability This project requires access to a working wireless network with at least one computer using a wireless connection. A laptop computer with wireless capability is optional, but useful. Other materials readily available.
Cost Very Low (under $20)
Safety No issues
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