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Science Fair Project Idea
thumbnail The enormous task of cleaning up oil spills in oceans and seas has burdened industry, government, and environmentalists for decades. The cleanup is almost always difficult. It involves great amounts of time, resources, and money to remove the oil from the water, and the cleanup is often only partially successful. Today, however, scientists are coming to the rescue, developing a new technique that combines nanotechnology and magnetism. In this science project, you will test the proposed… Read more
EnvEng_p036
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Time Required Average (6-10 days)
Prerequisites None
Material Availability Specialty items (ferrofluid and neodymium magnet) are needed for this project. See the Materials and Equipment list for details.
Cost Low ($20 - $50)
Safety Neodymium magnets are very strong. Some have the capacity to interfere or reset pacemakers. Never put a neodymium magnet in your mouth. Always keep them away from computers, credit cards, and other magnetized objects.

Ferrofluids create stains on skin and other materials, so take appropriate measures to keep the fluid contained to the working area.

Science Fair Project Idea
thumbnail Have you ever seen clothing with built-in lights? This might sound like something out of a science-fiction movie, but electronic textiles (or e-textiles for short) really exist. Instead of using hard surfaces for circuits (like what goes inside your computer or cell phone), e-textiles weave electrical parts like batteries, wires, and lights directly into clothing that you can wear to make the clothing do fun, interesting things like light up, respond to sound, or even serve medical purposes… Read more
Elec_p077
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Time Required Average (6-10 days)
Prerequisites None
Material Availability This science project requires special electronic components designed for use with e-textiles. See the Materials and Equipment list for details.
Cost Low ($20 - $50)
Safety No issues
Science Fair Project Idea
thumbnail Earth is an amazing planet. It has everything that we need: food, shelter, and water. Sure, we need water to drink, but have you thought about using water to create energy? Moving water has a lot of energy and all we need to do is to harness it. Moving water made the Grand Canyon. That took a lot of energy! In this science fair project, you will demonstrate the power of water by converting the kinetic energy in moving water to mechanical energy, which will lift a small weight. Read more
Energy_p021
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Time Required Short (2-5 days)
Material Availability A drill is needed.
Cost Low ($20 - $50)
Safety An adult’s help will be required to drill holes.
Science Fair Project Idea
thumbnail From traffic safety lights to neon signs, lights have a way of getting peoples’ attention. So it makes sense that if a person wants to get attention, wearing clothing with built-in lights might help. These types of clothing, called electronic textiles (or e-textiles for short) already exist. Instead of using hard surfaces for circuits (like inside your computer or cell phone), e-textiles weave electrical parts like batteries, wires, and lights directly into wearable clothing so it can do… Read more
Elec_p076
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Time Required Average (6-10 days)
Prerequisites Familiarity with basic electronics concepts like positive and negative terminals as well as open and closed circuits will be helpful for this science project. Students with no experience building circuits may want to try the simpler but thematically simlar project: [# ProjectIdea Name="Elec_p077" Value="HtmlAnchor" #].
Material Availability This science project requires special LEDs designed for use with e-textiles, and it will be much easier to do with a soldering iron. See the Materials and Equipment list for details.
Cost Average ($40 - $80)
Safety Soldering irons can get extremely hot and burn your skin if you touch them accidentally. They can also cause fires if left unattended. Adult supervision is required when using a soldering iron, especially if you are not familiar with using one. Science Buddies recommends using lead-free solder, especially in homes with pets and small children.
Science Fair Project Idea
thumbnail We are all familiar with the nursery rhyme, "Rain, rain, go away, come again some other day…", or the song "Singin' in the Rain." Numerous songs and stories describe our feelings about rain. Why so many? Because we humans understand how important rain is to our well-being. Rainfall, as part of the water cycle, brings water back to Earth that had previously evaporated or transpired from the surface. When water vapor in the atmosphere condenses into clouds and falls back to Earth as rain, it… Read more
EnvEng_p033
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Time Required Very Long (1+ months)
Prerequisites Before starting this project, check your local and state laws regarding the rules for collecting rainwater.
Material Availability Readily available
Cost High ($100 - $150)
Safety Wear safety goggles and equipment when working with tools. Minor injury is possible. Adult supervision is required. Do not drink the water collected in the project.
Science Fair Project Idea
thumbnail You have most likely witnessed the change that occurs as a banana ripens It changes from green and relatively hard to yellow and soft. The flavor also changes, from bitter to sweet. What happens during ripening? One big change is the increase in sugar content. In this food science fair project, you will measure how the sugar content of a banana changes as it ripens. Read more
FoodSci_p063
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Time Required Average (6-10 days)
Prerequisites You will need both ripe and unripe bananas for this science fair project, so be sure you can find them in your grocery store, particularly if it's the off-season.
Material Availability You will need to purchase a refractometer online. See the Materials and Equipment list for details.
Cost High ($100 - $150)
Safety No issues
Science Fair Project Idea
thumbnail "Gross! What is that in the toilet?" But maybe it's not just gross. Did you know there are bacteria that digest organic waste and create electrons? What if there was a way to collect those electrons to power a circuit? In this science fair project, you will make a microbial fuel cell to collect the electrons that the bacteria—anaerobic bacteria—create...only, you'll be using mud, which is much safer to handle than wastewater. If you would like to learn how to reuse and recycle an… Read more
Energy_p026
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Time Required Very Long (1+ months)
Prerequisites You will need to be familiar with the procedures for handling biologically hazardous material. Read the [# ProjectGuide Name="Advanced.MicroorganismsSafetyGuide" Value="HtmlAnchor" HtmlShortTitle="true" #] from the Science Buddies Project Guide to learn more about handling biologically hazardous materials. You also need to have access to a lower-order stream of water or a creek. See the Introduction for an explanation of this type of stream. Try to avoid streams in which the bed is rocky. The benthic mud sample should be from an area that has a thick, rich mud bed.
Material Availability Specialty items required
Cost High ($100 - $150)
Safety Adult supervision is recommended. Be careful when using a hot stove and a drill. Remember to always wear safety goggles when drilling. Exercise caution when working near a stream or creek. Water currents can be stronger than they look.
Science Fair Project Idea
thumbnail 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
There is strong interest in "going green," including using products that cause less environmental damage when they are disposed of. In this environmental sciences project, you will compare the toxicity of "green" and conventional liquid detergents using worms as test organisms. Read more
EnvSci_p053
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Time Required Long (2-4 weeks)
Prerequisites You will need to be flexible and creative in carrying out the procedure. You should be prepared to adjust the procedure, as needed, to ensure that the results are due to the detergents being tested and not variations in the worms' conditions.
Material Availability Worms can be purchased at fishing bait stores.
Cost Average ($50 - $100)
Safety No issues
Science Fair Project Idea
thumbnail Everything on our planet is connected together, linked by a giant recycling system called the biogeochemical cycle. It is an amazing process. You can actually investigate how our planet recycles and reuses everything needed to support life by making a small model of the biosphere. What will be important to include in your miniature system so that it can support different types of life? Read more
Geo_p038
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Time Required Very Long (1+ months)
Prerequisites None
Material Availability You will need access to a muddy stream, lake, pond, or march in order to collect mud.
Cost Low ($20 - $50)
Safety Always wash your hands with warm water and soap after handling soil that may contain microorganisms. Use caution if you use a knife. Adult assistance may be needed.
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