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

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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) Prerequisites Material Availability Cost Safety
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) Safety
Science Fair Project Idea
 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
 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) Prerequisites Material Availability Cost Safety
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) Prerequisites Material Availability Cost Safety
Science Fair Project Idea
 Can you remember what the weather was like last week? Last year? Here's a project that looks at what the weather was like for over a hundred years. You'll use historical climate data to look at moisture conditions in regions across the continental U.S. You'll use a spreadsheet program to calculate the frequency of different moisture conditions for each region and make graphs for comparison. Which part of the country has the most frequent droughts? The most frequent periods of prolonged… Read more
Math_p040
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 Time Required Short (2-5 days) Prerequisites Material Availability Cost Safety
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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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
 Maybe somewhere in your home there's a long hallway or a stairway with a light that you can turn on from either end. It's a nice convenience, but did you ever wonder how it's wired up to work that way? The goal of this project is to build a similar circuit with switches, flashlight batteries and a flashlight bulb (obviously, household circuits are not safe to experiment with). You'll need to understand the difference between connections made in series and connections made in parallel in an… Read more
Elec_p045
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 Time Required Short (2-5 days) Prerequisites Material Availability Cost Safety
Science Fair Project Idea
 Does listening to classical music help or hinder concentration and performance on cognitive tasks? You'll need help from a teacher to design two short, age-appropriate worksheet tests for this experiment. The tests should be of equal difficulty. You'll also need the cooperation of several additional classroom teachers in order to test enough students (at least 50-100, see the Science Buddies resource: ). Half the students will take test A while listening to classical music and test B with no… Read more
Music_p003
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 Time Required Long (2-4 weeks) Prerequisites Material Availability Cost Safety
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