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Science Fair Project Idea
There are two main types of materials when it comes to electricity, conductors, and insulators. What are they made of? Find out by testing different materials in a circuit to see which ones conduct the most electricity. Read more
Elec_p018
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Time Required Very Short (≤ 1 day)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety When working with electricity, take precautions and beware of electric shock.
Science Fair Project Idea
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
The electricity in your home probably comes from a power plant, but did you know that you can actually generate your own electricity? Wondering what it would take to light up a small light? This is your chance! In this electronics science project, you will build your own electric generator and investigate how to light up not just one, but two lights. Read more
Elec_p078
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Time Required Average (6-10 days)
Prerequisites You should have the patience and dexterity to coil several layers of wire neatly (or find someone who can help you). You will also need to hook up a basic circuit. Understanding electric circuits is not a prerequisite for this science project, though it will enable a deeper understanding of the electric generator.
Material Availability A kit containing all the specialty items needed for this project is available from the [# Link Name="Elec_p051.6" Value="HtmlAnchor" #].
Cost Low ($20 - $50)
Safety Neodymium magnets are very strong. Follow the safety guidelines in the Procedure for working with these magnets.
Science Fair Project Idea
Today magnetic recording is used in audio and video cassette recorders, and computer disk drives. Did you know that you can also use an electromagnet to record and play back from a steel wire? In fact, this is how magnetic recording got started. This project shows you how to build a simple wire recorder. Read more
Elec_p015
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Time Required Long (2-4 weeks)
Prerequisites None
Material Availability Specialty items
Cost Average ($50 - $100)
Safety Eye protection required during construction
Science Fair Project Idea
The electricity you use to power everyday devices is generated by electrical generators. These fascinating and powerful machines rely on magnets to function. Though they might seem extremely complicated, once you finish this science project, you will understand how, why, and when they generate electricity. You will build your own generator, make small changes in how exactly the magnets are placed, and test when moving magnets generate electricity. Read more
Elec_p079
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- Less Details
Time Required Average (6-10 days)
Prerequisites You should have the patience and dexterity to coil several layers of wire neatly (or find someone who can help you). You will also need to hook up a basic circuit. Understanding electric circuits is not a prerequisite for this science project, though it will enable a deeper understanding of the electric generator.
Material Availability A kit containing all the specialty items needed for this project is available from the [# Link Name="Elec_p051.6" Value="HtmlAnchor" #].
Cost Low ($20 - $50)
Safety Neodymium magnets are very strong. Follow the safety guidelines in the Procedure for working with these magnets.
Science Fair Project Idea
You may be familiar with permanent magnets—the kind that hang on a refrigerator. But did you know that other magnets, called electromagnets, can be turned on and off? When turned on, electromagnets act just like permanent magnets, but if you turn them off, their magnetic properties disappear. Electromagnets are an important part of many electronic devices, like motors, loudspeakers, and hard drives. You can create an electromagnet with a simple coil of wire and a battery. In this project,… Read more
Elec_p035
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Time Required Average (6-10 days)
Prerequisites None
Material Availability This project requires specialty items, available in a Science Buddies kit. See the Materials and Equipment section for details. Estimated project time includes shipping for the kit.
Cost Low ($20 - $50)
Safety The electromagnet can become hot during periods of extended use.
Science Fair Project Idea
Do you know how to find the north and the south poles of a magnet? What materials are more magnetic than others? Is there a way to measure how strong a magnet is? Is there a way to measure the strength of an electromagnet? How much does the material that is in the core of the electromagnet affect its magnetic strength? With this project, you'll be able to answer these questions and many others. You will learn how to build and use a simple meter for measuring magnetic field intensity. Read more
Elec_p030
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Time Required Average (6-10 days)
Prerequisites Familiarity with using a solderless breadboard, or willingness to learn
Material Availability Specialty items are needed. See the Materials tab for details.
Cost Low ($20 - $50)
Safety Short circuits can get very hot. Double-check all of your wiring before you connect the 9 V battery.
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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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
Global warming, climate change, melting ice caps—these are all big events that have an impact our environment. What can we do to help reduce the impact? We can reduce, reuse, and recycle. What can cities do to help? Cities can eliminate waste by saving energy. Cities around the world are switching from incandescent traffic signals to LED traffic signals to save energy and money. That's because LEDs are more efficient than incandescent lamps, which means that LEDs produce more light… Read more
Energy_p003
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Time Required Long (2-4 weeks)
Prerequisites Prior experience with using a digital multimeter
Material Availability Specialty items (see Materials list)
Cost High ($100 - $150)
Safety Since this science project deals with electricity, adult supervision is recommended. The LEDs used in this project are used in traffic signals and are very bright. Do not look directly at the LED when it is in operation and be sure to wear your sunglasses. Be sure to wear safety goggles when operating power tools.
Science Fair Project Idea
Imagine telling your friends about your latest science project: using a battery to make a light turn on. You might get some blank stares...sounds a little boring and basic, right? Now tell them you will do it with a potato! Yes, you can actually turn fruits and vegetables into electric power sources! Batteries power many things around you, including cell phones, wireless video game controllers, and smoke detectors. In this science project, you will learn about the basics of battery science and… Read more
Energy_p010
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Time Required Average (6-10 days)
Prerequisites None
Material Availability This science project requires specialty electronics items. A Science Buddies kit is available. See the Materials and Equipment list for details. Estimated time required includes time for shipping the kit.
Cost Low ($20 - $50)
Safety Do not eat the potatoes after they have been used as batteries.
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