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Science Fair Project Idea
thumbnail Have you ever been annoyed by poor Wi-Fi reception for your phone, tablet, or laptop? Do you wish there was something you could do about it? In this project you will learn how to build a parabolic reflector that you can attach to the antenna of a regular wireless router to help boost its signal. Read more
CompSci_p010
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Time Required Short (2-5 days)
Prerequisites None
Material Availability This project requires a Wi-Fi router and a smartphone, tablet, or laptop with a Wi-Fi connection. You will also need access to a printer to print the parabolic template. See the Materials and Equipment list for details.
Cost Very Low (under $20)
Safety No issues
Science Fair Project Idea
thumbnail What do the radio, TV, radio controlled cars, and cell phones all have in common? They all use invisible waves to transmit information. Find out which materials block radio waves, and which materials allow radio waves to pass through by doing this experiment. Read more
MatlSci_p036
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Time Required Very Short (≤ 1 day)
Prerequisites None
Material Availability Readily available
Cost Low ($20 - $50)
Safety No issues
Science Fair Project Idea
thumbnail Have you ever wondered how an AM radio station works? In this project you will learn the basics of how your favorite songs are transmitted by a radio station, by building your own simple AM radio transmitter. You will learn the basics of how a transmitter works, and how you are able to tune to your favorite station and listen to music. Read more
Elec_p024
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Time Required Average (6-10 days)
Prerequisites None
Material Availability Specialty items
Cost Average ($50 - $100)
Safety No issues
Science Fair Project Idea
thumbnail Every day, no matter where you are, you will see people using their cell phones. People use their cell phones for more than just making calls though. They use them for texting and searching the Internet, too. But some health groups are concerned that using your cell phone too much can be hazardous to your health. In this electricity and electronics science project, you will investigate whether your cell phone emits dangerous levels of microwave radiation when used for calling and texting. Read more
Elec_p068
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Time Required Average (6-10 days)
Prerequisites You must have access to a cell phone.
Material Availability In order to test for microwave radiation, you will have to purchase a microwave leakage meter. See the Materials and Equipment list for details.
Cost Average ($50 - $100)
Safety Wear proper safety gear when building the jig. See the Experimental Procedure for details.
Science Fair Project Idea
thumbnail Why is it more comfortable to wear light-colored clothes on a hot summer day? Why wear a dark-colored jacket for early-morning fishing on a cold lake? How much difference can it make? Here's a project where you can quantify how much difference color makes for absorbing heat. Read more
Phys_p030
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- Less Details
Time Required Average (6-10 days)
Prerequisites None
Material Availability Readily available
Cost Low ($20 - $50)
Safety Adult supervision required for drilling jar lids.
Science Fair Project Idea
thumbnail Want to start a garage band, but Mom or Dad won't let you because it will make too much noise? This is a good project for someone who is interested in acoustics and likes to build things. Who knows, it might help you figure out how to make everyone happy. Read more
Phys_p029
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Time Required Average (6-10 days)
Prerequisites Note: Project costs will be lower if you already have good quality speakers connected to a computer that can play audio files.
Material Availability Readily available
Cost Average ($50 - $100)
Safety Very loud sounds can cause hearing damage. Be sure to keep your speaker volume at reasonable levels when doing this experiment.
Science Fair Project Idea
thumbnail Have you ever wondered how a radio can grab signals that are transmitted through the air and convert them into sound? In this science project, you will build your own AM radio receiver from scratch and use it to listen to AM radio broadcasts. With your crystal radio you will be able to experiment with the circuit and the antenna to get the best reception. Read more
Elec_p014
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Time Required Average (6-10 days)
Prerequisites To do this science project, you must live in an area where you can receive at least one strong AM radio station. You can check for this with a car or portable radio.
Material Availability Specific circuit items are required. A Science Buddies kit is available for your convenience. See the Materials and Equipment list for details
Cost Average ($40 - $80)
Safety Never operate your crystal radio during a thunderstorm. When not in use, always disconnect your antenna from the radio circuit, and connect it directly to the ground rod. Be sure to wear safety goggles when installing the ground rod, especially if you are using a metal hammer. An adult's help might be necessary for some steps in the Procedure.
Science Fair Project Idea
thumbnail Have you ever heard of the NASA Mars rovers Spirit, Opportunity, and Curiosity? How about the "bomb squad" robots that police and the military use? These are places that are hard for us to reach (Mars), or dangerous for us to be near (explosives). Because the human operators are usually far away from the robot, driving one is different from driving a car. Operators rely on information sent back from the robot, including pictures and video. In this project, you will build your own simple… Read more
Robotics_p015
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- Less Details
Time Required Average (6-10 days)
Prerequisites None
Material Availability This project requires a radio-controlled toy car and a wireless video camera. See the Materials and Equipment list for details.
Cost Average ($50 - $100)
Safety No issues
Science Fair Project Idea
thumbnail 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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- Less Details
Time Required Average (6-10 days)
Prerequisites None
Material Availability Specialty items are needed. See the Materials tab for details.
Cost Low ($20 - $50)
Safety No issues
Science Fair Project Idea
thumbnail If you've ever watched an adult pay for something by simply touching their credit card to a machine at a store, or you've done the same with a bus pass, you've seen an RFID tag in action. An RFID (Radio-Frequency IDentification) tag allows a card to be read by a computer from a short distance away. This is very convenient, but it also allows criminals to steal information about you. For instance, on the subway or the bus, someone standing next to you can use an RFID reader to access the data on… Read more
CompSci_p048
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- Less Details
Time Required Short (2-5 days)
Prerequisites None
Material Availability This science project requires an RFID reader and RFID tags. See the Materials and Equipment list for details.
Cost Average ($40 - $80)
Safety No issues
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