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Others Like “How Do You Take Your Tea? Make a Simple Electronic Device to Measure the Strength of Tea”

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Science Fair Project Idea
Objects that glow in the dark hold a special place in the imagination of both children and adults. The lights go out at night, but these odd things refuse to disappear. Where does the light come from? Do they work in any climate? In this science fair project, you will make a very simple electronic device to measure the light given off by luminescent materials. The device will be used to study how temperature affects luminescence. Read more
Chem_p072
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Time Required Long (2-4 weeks)
Prerequisites Familiarity with basic chemistry and electronics would be helpful, but is not required.
Material Availability For your convenience a kit for this project is available 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)
Safety Use caution when using the drill or knife. Wear safety goggles when using the drill.
Science Fair Project Idea
Have you ever wondered how your clothes get their color? Dyeing textiles is a very complicated process and involves a lot of chemistry. Not only are the properties of the dye and fabric important, but the dyeing conditions also have to be exactly right to get optimal color adsorption. Curious about how it works? In this science project, you will color wool with Kool-Aid® and explore the chemistry of dyeing. Read more
Chem_p106
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Time Required Average (6-10 days)
Prerequisites Knowledge of basic chemistry is helpful as well as a good understanding of mathematical operations such as algebra and simple linear regression.
Material Availability This project requires special electronic parts. A kit is available at the . Estimated time required includes time for shipping the kit. For data analysis, a spreadsheet program, such as Google SheetsTM or Microsoft® Excel®, is helpful.
Cost High ($100 - $150)
Safety This project requires working with boiling water. Make sure to take precautions to prevent burns from the hot liquid.
Science Fair Project Idea
How does the intensity of a light source change as you move away from it? This project describes a method to verify the inverse square law: how light, sound, electrical signals, and gravity each decrease with distance from their source. It does not matter if you are talking about a lightbulb or the sun; this law still applies! Read more
Elec_p028
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Time Required Average (6-10 days)
Prerequisites None
Material Availability For your convenience a kit is available for this project from the . Time required includes shipping for the kit.
Cost Average ($40 - $80)
Safety No issues
Science Fair Project Idea
Have you ever gone to pour yourself a cup of milk and all you get is milk clumps? What happened to the milk is called coagulation, which is the mechanism that occurs when proteins in the milk clump together. While you do not necessarily want this in your milk, without coagulation (or curdling), there would not be any cheese or yogurt, which is why it is a very important process in the food industry. But what makes milk curdle? In this science project you will use pineapple juice to curdle milk… Read more
BioChem_p032
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Time Required Long (2-4 weeks)
Prerequisites A familiarity with basic chemistry and experience with simple electronics would be helpful, but is not absolutely 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
Your drinking water probably started out brown and muddy. Are you surprised? Maybe you were picturing it flowing from a clean mountain spring instead? All over the world, including in 68% of American homes, people get their drinking water from rivers, lakes, and other surface waters. This water is filled with dirt, debris, and other contaminants as it travels hundreds of miles. So, how does your drinking water go from brown and muddy to crystal clear? Often, flocculants—substances that… Read more
EnvEng_p039
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- Less Details
Time Required Average (6-10 days)
Prerequisites Some basic knowledge in chemistry would be helpful, but is not necessary.
Material Availability This project requires special electronic parts. See the Materials and Equipment list for details. For data analysis, a spreadsheet program, such as Google SheetsTM or Microsoft® Excel®, is helpful.
Cost Average ($50 - $100)
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
Have you ever wondered how your cell phone or laptop keeps running once you unplug it? Sure, it is the battery that makes your portable electronics work, but how exactly does a battery do that, and from where does the electricity come? Generally, in a battery chemical energy is converted into electrical energy. In fact, many different types of batteries exist that are all based on a different set of chemical reactions. In this science project, you will explore a special battery variant called… Read more
Chem_p107
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Time Required Average (6-10 days)
Prerequisites Some knowledge of basic chemistry and familiarity with the concept of electrochemistry would be helpful.
Material Availability This science project requires specialty electronics items. A structure is available. Estimated time required includes time for shipping the kit.
Cost Average ($40 - $80)
Safety Hydrogen peroxide can irritate the skin and eyes. When working with this chemical, make sure to wear eye and skin protection in case of any splashes or spills. In case of chemical contact, rinse skin or eyes immediately with plenty of water.
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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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.
Science Fair Project Idea
Generating power from mud sounds like science fiction, but it is actually real science, and a promising source of alternative energy. Topsoil is packed with bacteria that generate electricity when placed in a microbial fuel cell. Because such bacteria-laden soil is found almost everywhere on Earth, microbial fuel cells can make clean, renewable electricity nearly anyplace around the globe. They are an up-and-coming technology that scientists and engineers are working to make even more… Read more
Elec_p071
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- Less Details
Time Required Very Long (1+ months)
Prerequisites We recommended that you have a basic knowledge in physics of electricity and familiarity with the concepts of conductivity, electric current, resistance and electrical power. Having used a multimeter before is helpful, but not required.
Material Availability The microbial fuel cell kit needs to be special-ordered from the
Cost Average ($50 - $100)
Safety Be sure to wear the gloves supplied with the kit when handling the microbial fuel cell's electrodes (its cathode and anode). The electrodes are made of a conductive material called graphite fiber and should not be placed near electronics, power plugs, or have their fibers dispersed in the air. The fibers will cause electrical shortages when in contact with electronics.
Science Fair Project Idea
The makers of sports drinks spend tens to hundreds of millions of dollars advertising their products each year. Among the benefits often featured in these ads are the beverages' high level of electrolytes, which your body loses as you sweat. In this science project, you will compare the amount of electrolytes in a sports drink with those in orange juice to find out which has more electrolytes to replenish the ones you lose as you work out or play sports. When you are finished, you might even… Read more
Chem_p053
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Time Required Short (2-5 days)
Prerequisites None
Material Availability Specialty electronics items are required. A kit is available from Science Buddies. See the Materials list for details.
Cost Average ($40 - $80)
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