Electricity & Electronics Science Projects (60 results)

Stop for a minute and try to imagine your world without electrical power and electronic gadgets. No convenient appliances in the kitchen, no electric lights. No computers, MP3 players, television, or video games. Your life would be completely different, wouldn't it? Electricity and electronics are so central to modern life that, paradoxically, they're easy to overlook. Stop overlooking them now and try a hand at one of our projects to explore the science of how electricity works or build a cool electronics gadget.

Search Refinements
Go
Cost
Time
Material Availability
Science Fair Project Idea
LEDs (light-emitting diodes) are electronic components that convert a portion of the electrical energy flowing through them into light. How does the intensity of the light produced vary with the current flowing through the LED? To find out, you'll build some simple circuits to vary the current flowing an LED. You'll also build a simple light-to-voltage converter circuit to measure LED output. Read more
Elec_p037
+ More Details
- Less Details
Time Required Short (2-5 days)
Prerequisites Understanding of Ohm's Law.
Material Availability Specialty items
Cost Average ($50 - $100)
Safety No issues
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
+ More Details
- Less Details
Time Required Very Short (≤ 1 day)
Prerequisites None
Material Availability For your convenience a kit is available for this project from our partner .
Cost Average ($40 - $80)
Safety No issues
Science Fair Project Idea
Piezoelectric barbecue fire starters work by creating a spark that ignites the volatile lighter fluid, which then starts the charcoal burning. They are low current, high voltage devices. How high does the voltage have to get to make a spark in air? This project shows you a way to find out by with an inexpensive experimental setup to measure the distance that the spark can travel between two spherical electrodes. Read more
Elec_p032
+ More Details
- Less Details
Time Required Short (2-5 days)
Prerequisites None
Material Availability Readily available
Cost Low ($20 - $50)
Safety Adult supervision recommended
Science Fair Project Idea
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
+ More Details
- Less Details
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 similar 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
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
+ More Details
- Less Details
Time Required Very Short (≤ 1 day)
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 our partner .
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
Here's a puzzle you may have heard before which you can build as a simple electric circuit. First, the puzzle: a farmer is traveling to market with his cat, a chicken and some corn. He has to cross a river, and the only way to cross is in a small boat which can hold the farmer and just one of the three items he has with him. The problem is, he has to be very careful about what he chooses to leave behind at any time. If the cat and chicken are left alone, the cat will eat the chicken. If… Read more
Elec_p046
+ More Details
- Less Details
Time Required Average (6-10 days)
Science Fair Project Idea
Have you ever had to take prescription medicine to get over an illness? To get better, it is important to take the medication in the proper manner and at the proper time. Wouldn't it be cool if there were a tool or piece of automated equipment that held your medicine and reminded you to take it? A tool that would know when you picked up the bottle and took your medicine? Building a smart medicine cabinet is what this science project is all about! Read more
Elec_p067
+ More Details
- Less Details
Time Required Short (2-5 days)
Prerequisites None
Material Availability If you decide to extend the sensor project, you will have to purchase a board and LEDs.
Cost Average ($50 - $100)
Safety Always wear safety goggles when operating and using tools. Adult supervision is recommended.
Science Fair Project Idea
In this science project, you will build what might be the world's simplest motor. It has just four basic parts: magnets, a battery, a screwdriver, and a short piece of wire. It takes only minutes to assemble, but it provides a wonderful device to explore how electricity and magnetism combine to produce a fast-spinning motor. Read more
Elec_p065
+ More Details
- Less Details
Time Required Average (6-10 days)
Prerequisites Some familiarity with basic electronics and physics would be helpful, but is not required.
Material Availability Specialty items are required. See the Materials and Equipment list for details.
Cost Average ($50 - $100)
Safety Minor injury is possible. Wear safety goggles at all times. Be sure to read the important safety notes at the beginning of the Experimental Procedure before you begin.
Science Fair Project Idea
An electric current produces a magnetic field. You can take advantage of this fact to make a simple apparatus to test the electrical conductivity of various materials, including both solids and liquids. The detector consists of a coil of wire, with a magnetic compass inside it. You connect one end of the coil to a D-cell battery. The other end of the coil is connected to whatever material you are testing, and the material, in turn, is connected to the other end of the D-cell. In other… Read more
Elec_p044
+ More Details
- Less Details
Time Required Short (2-5 days)
Science Fair Project Idea
Water is an interesting thing. We drink it, swim in it, and wash ourselves with it. We can get energy from water by damming it and sending it through a turbine. But did you know that we can use the natural electrical charges present in water and a Kelvin electrostatic generator to create sparks? You can even use a Kelvin electrostatic generator to temporarily light a bulb! Now that is one bright idea! Read more
Elec_p069
+ More Details
- Less Details
Time Required Average (6-10 days)
Prerequisites None
Material Availability You will need to visit your local hardware store to purchase plumbing items to build the Kelvin electrostatic generator. You will also need a hand saw, a drill, a heat gun, a digital scale, a fan, and a dehumidifier. See the Materials and Equipment list for details. Cost of the project may be lower depending on what tools you already have available.
Cost High ($100 - $150)
Safety Parts of the Kelvin electrostatic generator require use of a hand saw and a drill. Wear safety goggles when using power tools. Adult supervision is required.
< 1 2 3 4 5 >