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Science Fair Project Idea
If you have ever built an electronic circuit with a soldering iron, you know that the component leads get hot. How much of that heat gets into the device you're soldering? This project shows you how you can use a silicon diode as a temperature sensor to find out. Read more
Elec_p033
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- Less Details
Time Required Short (2-5 days)
Prerequisites You need to understand both Ohm's Law and exponents to do this project.
Material Availability Readily available
Cost Low ($20 - $50)
Safety Adult supervision recommended for oven calibration of the diode.
Science Fair Project Idea
Are you good at remembering addresses and phone numbers? How many numbers do you think you can remember? Try this experiment to test your digit span, the maximum number of digits that you can remember. Read more
HumBeh_p020
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- Less Details
Time Required Very Short (≤ 1 day)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety No issues
Science Fair Project Idea
If you want to get your friend's attention at a crowded sporting event with lots of people cheering, you need to shout. If you're trying to do the same thing in a quiet library, a whisper works. The detection limit for each of our senses depends on the amount of "background" stimulation that is already present. This project uses an LED control circuit to investigate detection of changes in light levels. Read more
Elec_p039
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- Less Details
Time Required Short (2-5 days)
Prerequisites Understanding of Ohm's Law and an understanding of logarithms. Note: the biggest expense is a powered, solderless breadboard, which can be used for future explorations in electronics.
Material Availability Specialty items
Cost Very High (over $150)
Safety No issues
Science Fair Project Idea
Digital cameras can be a great way to learn about photography. Most digital cameras today have LCD screens, so you get instant feedback on your photo. If you make a mistake, no problem, you just delete the picture. It's nice that you don't have to worry about the expense and bother of developing film! This project can help you learn to take better pictures. Read more
Photo_p014
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- Less Details
Time Required Average (6-10 days)
Prerequisites You'll need a digital camera that take pictures in manual mode (a grayscale, or 'black-and-white' mode, is nice to have but not essential). You will need to know how to change the shutter speed, lens aperture, and ISO setting. A tripod for the camera is nice to have, but not absolutely essential. You will also need a computer.
Material Availability Readily available
Cost Very Low (under $20)
Safety No issues
Science Fair Project Idea
Some people have a photographic memory and can memorize anything they see almost instantly! Wouldn't that make homework easy? Other people can remember almost anything they hear. Try this experiment to see which type of memory you have. Read more
HumBeh_p018
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- Less Details
Time Required Very Short (≤ 1 day)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety No issues
Science Fair Project Idea
Do you read the list of ingredients in foods and drinks before you buy them at the grocery store? If you do, you may have noticed that many of the items, especially colored drinks, contain dyes with names such as FD&C Blue 1, Red 40, or Yellow 5. But how much dye is needed to create all these colors? In this chemistry science project, you will build a simple spectrophotometer that is able to measure the concentration of colored chemicals in solutions. You will test your device by measuring… Read more
Chem_p075
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- Less Details
Time Required Long (2-4 weeks)
Prerequisites Some knowledge of basic chemistry, as well as familiarity with electronics, would be helpful, but is not required.
Material Availability For your convenience a kit is available for this project from the . Time required includes shipping for the kit. For data analysis, a spreadsheet program, such as Google SheetsTM or Microsoft® Excel® is helpful.
Cost Average ($50 - $100)
Science Fair Project Idea
In this project, water fleas (Daphnia magna), a semi-transparent freshwater crustacean, are used to study the effects of caffeine on heart rate. Don't worry about having to learn how to take a crustacean's pulse: you can actually see the heart beating under a microscope. Many variations of this experiment are possible. Read more
Zoo_p048
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- Less Details
Time Required Average (6-10 days)
Prerequisites You will need a microscope for observing Daphnia closely enough to monitor heart rate. Either a dissecting microscope or a compound microscope with low-power objective and a depression slide could be used.
Material Availability Specialty items
Cost Average ($50 - $100)
Safety No issues
Science Fair Project Idea
Have you ever looked up at the stars at night and wondered how fast they were moving or how far away they were? By studying how the brightness of a star changes with distance, you can answer those questions. In this astronomy science project, you'll create a model of starlight and use Google's app with your smartphone or tablet to discover the key relationship between brightness and distance. Read more
Astro_p034
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- Less Details
Time Required Very Short (≤ 1 day)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety No issues
Science Fair Project Idea
In the wild there are two types of animals: the hunters and the hunted. A good predator is always on the prowl for fresh prey. What can an animal do to stay off of the menu? To survive, some animals use camouflage so they can better blend in with their surroundings. In this science project, you will be the hungry predator hunting for M&M® prey. But it may not be as easy as it sounds — some of your prey will be camouflaged by their habitat. Will they be able to avoid your grasp? … Read more
Zoo_p012
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- Less Details
Time Required Very Short (≤ 1 day)
Prerequisites None
Material Availability Readily Available
Cost Very Low (under $20)
Safety No hazards
Science Fair Project Idea
Living in the industrialized world, like the United States, we are fortunate because we don't have to worry about the quality of our drinking water. Your community has the means to clean and provide water to you. But in many parts of the world, people don't have this luxury. Whether it is due to war or poverty, the lack of clean water leads to many health and social problems. In this environmental engineering science project, you will learn about different methods to filter out impurities in… Read more
EnvEng_p030
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- Less Details
Time Required Average (6-10 days)
Prerequisites You must have access to a stovetop.
Material Availability You will need to purchase a water filter kit. See the Materials and Equipment list for details.
Cost Low ($20 - $50)
Safety You must exercise caution when using a stovetop. Adult supervision is recommended.
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