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Science Fair Project Idea
thumbnail Do you think it is possible to build a robot you can steer, without programming a computer to tell the robot what to do? Believe it or not, it is! In this engineering project, you will build a robot using a simple electronic circuit that steers the robot left or right to make it follow a bright light. Then you will make some adjustments to the robot to see if you can improve its steering. How well will you be able to control your robot? Read more
Robotics_p022
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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)
Safety Short circuits can get very hot and present a burn hazard. Be careful to avoid short circuits when building your robot. See the Procedure for more information.
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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- Less Details
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 Do you ever wish you could hire someone to guard your favorite toys, or keep certain people from coming into your room? What if you could make a robot to do it for you? This project will show you how to build a simple security robot controlled by a motion-detecting sensor. When someone comes near your valuables or enters the room, the robot will spring to life and (hopefully) scare them away! Read more
Robotics_p024
+ More Details
- Less Details
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)
Safety Short circuits can get very hot and present a burn hazard. Be careful to avoid short circuits when building your robot. See the Procedure for more information.
Science Fair Project Idea
thumbnail Light interacts with matter in a variety of ways—it can be absorbed, reflected, refracted (bent), and scattered. The scattering of light explains why the sky is blue, why milk is white, and why the Mississippi River is called "The Big Muddy." In this biochemistry science fair project, you will make an electronic device to measure the amount of scattered light in milk. You will also use the device to track the activity of protease (a type of enzyme) in pineapple juice, based on its ability… Read more
BioChem_p032
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Time Required Long (2-4 weeks)
Prerequisites A familiarity with basic chemistry is required. Experience with simple electronics would be helpful, but is not absolutely required. Although the procedure provides step-by-step instructions, this is a DIY (do-it-yourself) science fair project that may call for some creative problem solving on your part.
Material Availability Electronic components are required. See the Materials & Equipment list for details.
Cost Average ($50 - $100)
Safety Use caution when working with laser pointers. Wear safety goggles when using the drill.
Science Fair Project Idea
thumbnail Have you ever seen moths buzzing around bright lights at night? What about animals that always crawl into dark places, under rocks or furniture? This type of behavior is called phototaxis — movement toward (or away from) a light source. In this project you will build your own biologically inspired robot critter that mimics this behavior. Basing your design on the popular and simple BristleBot robot, you will make a robot with two light sensors for "eyes" and two motors that help it steer… Read more
Robotics_p012
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Time Required Average (6-10 days)
Prerequisites Some familiarity with electronic circuits and using breadboards will be very helpful, though not required, for this project. Using a soldering iron is also helpful but a work-around is offered in the Procedure.
Material Availability This project requires certain parts from an electronics store or online retailer. See the Materials and Equipment list for details.
Cost Average ($40 - $80)
Safety If you use a soldering iron for this project remember that soldering irons get extremely hot and can cause burns if they touch your skin. They can also become a fire hazard if left unattended. Science Buddies recommends using lead-free solder, especially in homes with pets or small children.
Science Fair Project Idea
thumbnail Solar cells are popping up on rooftops everywhere these days and are a model for clean, renewable energy. Did you ever look at those solar panels and wonder how we can get electricity produced by solar cells when the sun is not shining? It is a great question because solar panels do not produce electricity when it is dark outside. One strategy to overcome this challenge is to store the energy produced by solar cells during the day in the form of a fuel that can be used at a later time. In… Read more
Chem_p099
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Time Required Average (6-10 days)
Prerequisites Completion of a basic chemistry class is recommended before trying this science project. You should also know something about circuits, or use the [# ProjectGuide Name="Advanced.ElectronicsPrimerIntroduction" Value="HtmlAnchor" HtmlText="Science Buddies Electronics Primer" #].
Material Availability A number of specialty items are required. For your convenience, a Science Buddies Kit is available for purchase.
Cost Very High (over $150)
Safety Adult supervision is recommended. Use caution when connecting the four 9V batteries. Ensure that the wires/connectors do not come in contact with each other to cause a short or the batteries will become VERY hot and can possibly cause burns. Cobalt nitrate can cause skin and eye irritation. It is recommended to wear disposable gloves when handling cobalt nitrate.
Science Fair Project Idea
thumbnail 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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- Less Details
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
thumbnail 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
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- 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
thumbnail Objects that glow in the dark hold a special place in the imagination of both children and adults. The lights go out at night, but these odd things refuse to disappear. Where does the light come from? Do they work in any climate? In this science fair project, you will build an electronic device that measures the light given off by luminescent materials. The device will be used to study how temperature affects luminescence. Read more
Chem_p072
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Time Required Long (2-4 weeks)
Prerequisites A familiarity with basic chemistry is required. Also, some experience with electronics would be helpful. Although the circuit is fairly straightforward, especially if you use the kit, this is a DIY ("do-it-yourself") project that will call for some creative problem solving on your part.
Material Availability Any phosphorescent material will work for this project. If you want to use super-bright phosphorescent paints, they are available online. See the Materials & Equipment list for more information.
Cost High ($100 - $150)
Safety Use caution when using the drill or knife. Wear safety goggles when using the drill.
Science Fair Project Idea
thumbnail If you have ever prepared a cup of coffee or tea with sugar, you have probably seen that the grains of sugar quickly dissolve and completely disappear in hot water. But sugar is not the only type of solid that can readily dissolve in a liquid. In fact, there are some types of rocks that can be dissolved by common liquids. It might be hard to imagine large, hard rocks being eaten away by some ordinary fluids, right? But it actually happens all the time! In this geology science project, you will… Read more
Geo_p047
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Time Required Long (2-4 weeks)
Prerequisites None
Material Availability Small limestone rocks are needed to do this science project. See the Materials and Equipment list for details. Note: The listed time required to do this science project includes shipping time.
Cost Average ($50 - $100)
Safety No issues
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