Is this connected to that? Use a homemade electronic tester to find out if electricity can flow between two objects.
What do lamps, computers, televisions, printers, and kitchen appliances all have in common? They all need electricity to work. In order for electricity to provide power to these devices, it has to flow into and out of them. In this electronics science fair project, you will make your own simple circuit tester and use it to study how electricity flows through a lamp.
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Veggie Power! Making Batteries from Fruits and Vegetables
Did you know that you can get electricity out of a potato? In this project you will learn how do build a simple battery using a variety of different fruits and vegetables - REALLY! You'll be able to figure out things like: How many lemons does it take to turn on a light bulb? Does an orange make a better battery than a potato? Can you use each segment of a grapefruit to make a super-grapefruit battery? You will also learn some of the basics of electricity and circuits: What is voltage? What is current? What is resistance? How much power can you get out of a veggie battery? Does an orange battery run out of "juice"?
So, do a little produce shopping and then learn about batteries and electricity.
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Build Your Own Crystal Radio
Here's a science fair project that shows you how to build your own radio receiver! You'll learn the basic circuit elements required for receiving radio signals, and you'll be able to listen to AM radio broadcasts with something you made yourself. A nice feature of this project is that you can make it as easy or as advanced as you want.
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Spin Right 'Round with this Simple Electric Motor
Did you know that you probably used an electric motor today? Yes, that's right. If you put on clothes that were washed in a washing machine, rode in a car, ate food from a fridge, warmed up lunch in a microwave, or played a video game, you used an electric motor! Try this science fair project and you'll learn how to make a simple electric motor by having two magnets "talk" to each other. As they interact, they will alternate between "liking" each other (being pulled together), and "disliking" each other (pushing away from one another). All that pushing and pulling will create some serious spinning, and you will have built an electric motor!
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Cool Junctions
Everyone is familiar with the idea that electric current passing through devices can heat them up. Most of us have used appliances like electric stoves, hair dryers, and toasters that are made specifically for heating. We've also noticed that things that run on electricity get warm when the current is turned on. Have you ever turned this relationship around and wondered if it is possible to use heat to produce current? Did you ever wonder if it is possible to cool things using electrical current? If so, then look no further! Check out this project to learn about thermoelectricity.
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Where There Is Charge, There Can Be Sparks!
Have you ever gotten a shock touching a doorknob after walking across a carpet? Static charge is responsible for that shock. Wouldn't it be cool to save up and store all of that charge in a homemade jar? It would almost be like storing lightning. This science project will show you how to do that.
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Avoid the Shock of Shocks! Build Your Own Super-sensitive Electric Field Detector
Wouldn't it be nice to avoid those nasty electric shocks you get after you've walked around on carpet and then shake a friend's hand, or all those crazy flyaways you get after brushing your hair? These are caused by static electricity. In this science fair project, you will build a super-sensitive charge detector to investigate the positive and negative electric fields created by static electricity. The detector can sense invisible electric fields, so try this science fair project to avoid the shock of shocks!
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Go, Gadget, Go! Building Robots with LEGO® Mindstorms®
In the mid-20th century, people thought of robots as futuristic tools. But in the 21st century, robots are not a figment of our imaginations, but are a part of our reality. Robots even perform tasks that humans can't do. In this engineering science fair project, you will use LEGO Mindstorms to build a robot that is fast, lightweight, and stable. Who knows? You might end up building a robot that does housework or even your homework!
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Abracadabra! Levitating with Eddy Currents!
Did you know that not all trains run on tracks? Some of the world's fastest trains are magnetic levitation trains (maglev). This means that the carriage of the train is suspended over the rails with no support, but only with magnetic fields! There is a physical explanation for magnetic levitation, and if you would like to learn more about magnetism and current, this is a science fair project that you must try!
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Sliding Light: How to Make a Dimmer Switch
So, you've got your popcorn and are settled into your seat at the movie. The lights dim—it's show time! But wait a second. Did you ever wonder how those lights dim so smoothly? It just wouldn't be the same if the lights suddenly snapped off, would it? In this electronics science fair project, you'll investigate dimmer switches, and even build a simple model of one. Try this project and light up your room, and your mind!
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Index of Electricity & Electronics Project Ideas |
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