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Others Like “Relationships Between Variables: Using Correlation and Linear Regression”

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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
Science Fair Project Idea
Tennis racquets, baseball bats and golf clubs all vibrate when they hit the ball. You can often feel it in your hands, particularly if you "mis-hit" the ball. You can find the point(s) on your racquet, bat or club—called the "sweet spot"—that minimize unwanted vibrations. Low-tech method: hang the racquet or bat straight up and down with a string from its handle. Lightly hold the handle with your thumb and forefinger and have a helper sharply tap the bat, strings or club face… Read more
Sports_p033
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Time Required Average (6-10 days)
Science Fair Project Idea
Math is used by many different types of scientists to model phenomenon and evaluate data from an experiment. By building mathematical models scientists can understand how different physical, chemical, and biological processes are affected by different variables. The most important tools are: making a graph to give a visual representation of the relationships between your variables and making an equation to give a way of computing the relationships between your variables. Find a source of data,… Read more
Math_p029
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Time Required Long (2-4 weeks)
Science Fair Project Idea
You probably know that where you live on Earth affects your weather. If you live in a far northern or far southern latitude, you experience colder temperatures than people who live near the equator at latitudes close to zero. Your latitude on Earth affects many aspects of your culture, like how you dress, what kind of house you live in, what foods you eat, and even how your day is structured: what time you go to school, to dinner, and to sleep. Some cities at latitudes closer to the equator,… Read more
Music_p020
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Time Required Average (6-10 days)
Prerequisites You must have Internet access with a personal computer.
Material Availability Readily available
Cost Very Low (under $20)
Safety No issues
Science Fair Project Idea
Here's a project that will teach you about math as you follow some of your favorite players or teams. You'll be comparing day-to-day performance with long-term averages, and trying to determine if the "streaks" and "slumps" over shorter time periods are due to random chance or something else. When you've finished, you'll have a better understanding of some important concepts in statistical analysis and baseball. If a player goes 0-for-20, does that mean anything? Using probability theory,… Read more
Math_p004
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Time Required Average (6-10 days)
Prerequisites Basic knowledge of Microsoft Excel and statistics
Material Availability Readily Available
Cost Very Low (under $20)
Science Fair Project Idea
Animals come in all shapes and sizes, even humans. You can look up different statistics about different kinds of animals using the Internet: average body size, brain size, life expectancy and generation time are some examples. Is there a correlation between body size and life span? Is there a correlation between body size and brain size? Is there a correlation between body size and generation time? Is there a correlation between body size and the size of your footprint? (Comparative Mammalian… Read more
Zoo_p034
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Time Required Average (6-10 days)
Science Fair Project Idea
Think of hitting a baseball, heading a soccer ball into the net, or hitting a tennis ball with a racquet. Where the ball goes depends on...what? You can set up a simple model to start your investigation. You'll need a marble, a flat piece of wood, a flat piece of cardboard, a pencil, a ruler, a protractor, and a level surface. Lay down the cardboard down on a level surface and set up the flat piece of wood at one edge. The wood will act like a wall, and you're going to roll the marble at… Read more
Sports_p040
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Time Required Long (2-4 weeks)
Science Fair Project Idea
For example, think of hitting a baseball, heading a soccer ball into the net, or hitting a tennis ball with a racquet. Where the ball goes depends on...what? You can set up a simple model to start your investigation. You'll need a marble, a flat piece of wood, a flat piece of cardboard, a pencil, a ruler, a protractor, and a level surface. Lay down the cardboard down on a level surface and set up the flat piece of wood at one edge. The wood will act like a wall, and you're going to roll… Read more
Phys_p039
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Time Required Short (2-5 days)
Science Fair Project Idea
Here's an interesting project idea with a variation that combines computer science, physics and music. You'll need a piano in a quiet room, a microphone and a computer with digital sound recording and analysis software. The project shows you how you can make a piano string start vibrating without hitting its key. You can record the sounds on the computer, and use sound analysis software to measure the frequencies of the induced vibrations. For more details see: . Be sure to check out the… Read more
CompSci_p026
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Time Required Long (2-4 weeks)
Science Fair Project Idea
thumbnail Do you have bats in your neighborhood? Have you heard them "whoosh" by you, but not been able to see them? In this science fair project, you will be able to detect flying bats by listening in on the ultrasonic signals they produce to locate objects in their environment. The bat detector is a useful and fun tool for studying the biology of this nocturnal flying mammal. Read more
MamBio_p024
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Time Required Long (2-4 weeks)
Prerequisites Provide a brief description of requirements: Since this project involves studying bats in their native environment, you should start this project only if you are confident you have bats in your neighborhood. Ask your science teacher if there are local bats that you can observe.
Material Availability You will need to purchase a bat detector for this science fair project. See the Materials & Equipment section for more details on where to purchase one.
Cost Average ($50 - $100)
Safety For this science fair project, you will be listening to bats as they fly near you. You will not be touching them or disturbing them in any way, so there are no safety issues. However, if you do see a bat on the ground, do not touch it because bats can carry dangerous diseases.
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