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Science Fair Project Idea
thumbnail Earth, the Sun, wind, and water are all sources of renewable and sustainable energy—and sources you probably already know about. But did you know that you can get energy from such things as banana peels, coffee grounds, and newspaper? In a process called composting, you can transform kitchen and other solid wastes into a product that is beneficial for your garden: homemade fertilizer. As the waste decomposes, it also creates heat. Can this naturally created heat be put to use? In this… Read more
Energy_p035
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Time Required Very Long (1+ months)
Prerequisites Making a compost pile can take anywhere from a couple of days to a few weeks, depending on the method and bin you use. In this energy and power science fair project, you will spend a few days creating a compost pile. You will have to account for the time as you are planning your science fair project. You will also need to be home for several hours at a time on many specific days throughout this project. Read through the Experimental Procedure for more details.
Material Availability You (and friends, if possible) will have to start collecting potato peelings or grass clippings a few weeks in advance to accumulate enough, so keep this in mind when budgeting time for your science fair project. See the Materials and Equipment list for details.
Cost Very High (over $150)
Safety Wear safety goggles and use caution when working with all tools. Be sure to wear disposable gloves when handling animal waste and to clean all of the work surfaces thoroughly with a bleach solution. Read the Science Buddies [# ProjectGuide Name="Advanced.MicroorganismsSafetyGuide" Value="HtmlAnchor" HtmlText="Microorganism Safety Guide" #] to learn how to experiment safely.
Science Fair Project Idea
thumbnail How can seawater from the oceans be turned into fresh water that is suitable for people to drink? Through a process called solar desalination! In this science project, you will make a solar desalination apparatus using readily available materials, and a power source that is free. How much water can the device produce, and is it still salty at all? What factors affect how effectively saltwater is turned into fresh water? Read more
EnvEng_p022
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Time Required Average (6-10 days)
Prerequisites None
Material Availability Some specialty items needed, see Materials list for details. For your convenience a Science Buddies Kit is available for purchase.
Cost Average ($50 - $100)
Safety A hand drill is needed for some steps. Adult assistance is needed for the steps involving a hand drill. All items in the Science Buddies Kit come pre-drilled, eliminating this safety issue.
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 Cars that can drive themselves might sound like science-fiction, but they are a reality. Self-driving cars are cars that use sensors and computer programs to automatically drive on roads, without intervention from a human driver. However, the cars still have to follow all the same rules of the road as human drivers, including staying in the correct lane, obeying road signs and traffic lights, and avoiding obstacles like potholes or fallen tree limbs. In this project you will build a simplified… Read more
Robotics_p023
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Time Required Average (6-10 days)
Prerequisites While no previous electronics or robotics experience is required to do this project, it will be helpful if you are familiar with basic circuit concepts and with using a breadboard. The Bibliography section in the Background tab has many tutorials you can use to get started.
Material Availability This project requires specific circuit components from an electronics vendor. See the Materials and Equipment list for details.
Cost Average ($40 - $80)
Science Fair Project Idea
thumbnail Electronic devices can be designed to detect dangerous fumes or other hazards, such as smoke or carbon monoxide. In this electronics project, you will build another potentially life-saving detector—a radon detector. Radon gas is radioactive and can pose a hazard to your health if you live in an area where it leaks from the ground. In this electronics science project, you will learn how to collect radon with an ordinary dusting cloth mounted on the intake of a fan, and then measure its… Read more
Elec_p064
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Time Required Very Long (1+ months)
Prerequisites Since the goal of this science project is to measure radon gas, you should have access to an area that has previously tested positive for radon with a commercial radon detection system. See the Experimental Procedure section for details. This is an advanced science project that will require creative problem solving on your part.
Material Availability While most of the parts for this science project are readily available, you might need to be creative about finding or making some of the parts.
Cost High ($100 - $150)
Safety Wear safety goggles when drilling and soldering. Adult supervision is recommended.
Science Fair Project Idea
thumbnail You have secret treasure that you need to keep safe from thieves. How do you keep guard 24 hours a day without skipping school and the rest of your important activities? You build a guard robot and have it do the hard work! You can build a guard robot using a LEGO® MINDSTORMS® set and the instructions in this project to guide your efforts. And do not worry: your secret is safe with your robot. Read more
Robotics_p004
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Time Required Average (6-10 days)
Prerequisites None
Material Availability This project requires a LEGO® MINDSTORMS® NXT 2.0 kit and a computer. See the Materials tab for details.
Cost Very High (over $150)
Safety No issues
Science Fair Project Idea
thumbnail You have probably read all about forms of alternative energy like solar and wind power. But what about human power? With the aid of a coil of wire and some magnets, you can generate electricity with nothing more than a flick of your wrist. In this project, you will build a small hand-powered electrical generator that can power a series of tiny lights. Get ready to save the planet and get some exercise at the same time! Read more
Energy_p009
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Time Required Average (6-10 days)
Prerequisites None
Material Availability This science project requires some specialty electronic components. A kit is available from the [# Link Name="Energy_p009.16" Value="HtmlAnchor" #]. The Time Required estimate includes time for gathering specialty materials. The actual project only takes 1 day.
Cost Average ($40 - $80)
Safety

Neodymium magnets are very strong and can pinch your fingers when they come together. You should keep them away from pets and small children because they can cause serious harm if ingested. As with any magnet, you should keep them away from computers, cell phones, and credit cards.

Adult supervision is required when using a hobby knife.

Science Fair Project Idea
thumbnail Renewable energy is the energy that is extracted from natural sources, such the Sun (solar), earth (geothermal), wind, and water (hydropower). These sources are renewable because they can be replenished by the same natural sources within a short period of time. Hydropower energy is extracted from moving water, like ocean wave energy and tidal energy. In this energy science fair project, you will make a model of a tidal barrage (also known as a dam) and investigate how emptying the tidal barrage… Read more
Energy_p028
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Time Required Short (2-5 days)
Prerequisites You will need access to a drill and hole saws.
Material Availability Readily available
Cost Average ($50 - $100)
Safety Minor injury is possible. Use caution when using a drill. Always wear safety goggles when working with power tools. Adult supervision is required.
Science Fair Project Idea
thumbnail Our home, Earth, is a living planet. Earthquakes and volcanic eruptions are proof that the geological forces that shaped our planet and created the land masses are ongoing. An amazing example of geologic activity that is less damaging is a geyser. In this geology science fair project, you will build a model geyser and determine how depth of the source affects how the water is ejected. By the end of this project, you will know a lot more about geysers and understand that a geyser is much more… Read more
Geo_p040
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Time Required Long (2-4 weeks)
Prerequisites None
Material Availability Specialty items are required. This science fair project requires using an Erlenmeyer flask and a rubber stopper with a hole through it. See the Materials and Equipment list for details.
Cost High ($100 - $150)
Safety Minor injury is possible, so wear safety goggles. Adult supervision is required.
Science Fair Project Idea
thumbnail The ocean is a wondrous force of nature. It affects the weather, and provides us with food and free and renewable energy to power our lives. How can the ocean provide us with free and renewable energy? One way is to extract the energy that is in the waves. There are many kinds of power systems that can be installed to extract energy from the waves, depending on the location. In this energy and power science project, you will build and test a simple model of an oscillating water column device to… Read more
Energy_p037
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Time Required Average (6-10 days)
Prerequisites You should have fairly easy access to the ocean or to a deep body of water. Find a location where the surface of the water is within easy access of a pier, a dock, or a boat slip, and where the water is about 5 feet deep. You could also do this project in a swimming pool.
Material Availability See the Materials and Equipment list for more details.
Cost High ($100 - $150)
Safety Be sure to wear safety equipment, such as safety goggles and gloves, when working with power tools and other equipment. Parental supervision is required.
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