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Science Fair Project Idea
thumbnail Do you hate shots? Do you complain about paper cuts? Imagine if you had to give yourself shots a couple of times a day, as well as prick your finger, on purpose, even more frequently. Of course, if you have diabetes you do not have to imagine this; it is your reality. People who have diabetes usually need to keep close track of how much sugar is in their blood (called their blood glucose levels)by testing a drop of blood from a finger prick. If there is too much sugar in their blood, some… Read more
HumBio_p040
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Time Required Average (6-10 days)
Prerequisites Some familiarity with electronic circuits and using breadboards would be helpful, though it is not required for this project. Completion of a basic chemistry class is also recommended before trying this project.
Material Availability A pump and other electronics parts must be specially ordered to do this project. See the Materials and Equipment list for details. Estimated project time includes shipping of specialty components.
Cost Average ($40 - $80)
Safety Some parts of the circuit can get warm during normal operation. Do not leave the circuit operating when unattended. Be very careful with your wiring to prevent short circuits from happening; short circuits can get very hot and cause plastic parts of the circuit to melt.
Science Fair Project Idea
thumbnail Forget drinking your juice. Instead, try snacking on it! Use the steps and recipes in this food science project to transform drinks into semi-solid balls that pop in your mouth. The technique is called spherification and it is part of a larger food science trend called molecular gastronomy— but we just call it yummy science! Read more
FoodSci_p074
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Time Required Short (2-5 days)
Prerequisites None
Material Availability Chemicals need to be specially ordered. See the Materials and Equipment list for details.
Cost Average ($40 - $80)
Safety Adult supervision may be needed for using a blender. All chemicals in this science project are safe to handle and eat (they are common food additives).
Science Fair Project Idea
thumbnail Have you ever wondered why some things disappear when they are put in water but other things do not? For example, you may have seen that salt disappears, or dissolves, when it is mixed in a glass of water. But when you throw a rock in a stream it will not usually dissolve, and instead it will just sink to the bottom. And then there are some things that do not act like the salt or the rock. These are called colloids. If you have made Oobleck out of cornstarch and water, then you have seen… Read more
MatlSci_p014
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Time Required Very Short (≤ 1 day)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety No issues
Science Fair Project Idea
thumbnail Generating power from mud sounds like science fiction, but it is actually real science, and a promising source of alternative energy. Topsoil is packed with bacteria that generate electricity when placed in a microbial fuel cell. Because such bacteria-laden soil is found almost everywhere on Earth, microbial fuel cells can make clean, renewable electricity nearly anyplace around the globe. They are an up-and-coming technology that scientists and engineers are working on making even more… Read more
Elec_p071
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Time Required Very Long (1+ months)
Prerequisites Having used a voltmeter/multimeter before is helpful, but not required.
Material Availability The microbial fuel cell kit needs to be special ordered from the [# Link Name="Elec_p071.7" Value="HtmlAnchor" #].
Cost Average ($50 - $100)
Safety Be sure to wear the gloves supplied with the kit when handling the microbial fuel cell's electrodes (its cathode and anode). The electrodes are made of a conductive material called graphite fiber and should not be placed near electronics, power plugs, or have their fibers dispersed in the air. The fibers will cause electrical shortages when in contact with electronics.
Science Fair Project Idea
thumbnail You have probably heard about using renewable energy sources like wind and solar power to provide electricity to homes and buildings, as well as hybrid or fully electric cars that use less (or zero) gasoline. But what about solar-powered robots? As robots become more common, it is increasingly important to use "green" energy sources to power them. In this project, you will build and test a popular robot called a bristlebot — a tiny robot made using toothbrushes—that can operate on… Read more
Robotics_p026
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Time Required Short (2-5 days)
Prerequisites None
Material Availability A kit containing all the electronics parts needed for this project can be found in the [# Link Name="Robotics_p026.1" Value="HtmlAnchor" #].
Cost Average ($40 - $80)
Safety No issues
Science Fair Project Idea
thumbnail Imagine that you want to create your own brand of colored candies. You know they would be a success if only you could figure out how to make a certain color, such as purple. How can you do this when government regulators have approved just a few food dyes? First, you will need to find out how your competitors make all of their colors from these few dyes. Do different candy brands use the same or different dyes? This can be figured out with gel electrophoresis, a technique commonly used in… Read more
BioChem_p039
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Time Required Short (2-5 days)
Prerequisites None
Material Availability This project requires a [# Link Name="BioChem_p039.1" Value="HtmlAnchor" #]. See the Materials and Equipment list for details.
Cost High ($100 - $150)
Safety Use caution when heating the agarose. Never connect more than five 9-volt (V) batteries together for this project.
Science Fair Project Idea
thumbnail Have you ever been in an earthquake? What did it feel like? Did you jiggle back and forth? Up and down? Was there a jolt? Or a rolling motion? Come build a house Hansel and Gretel would love to eat, a special table to shake it on, and see how different soil types can amplify shaking. Read more
CE_p023
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Time Required Average (6-10 days)
Prerequisites None
Material Availability Readily available
Cost Low ($20 - $50)
Safety Children who are allergic to peanuts should substitute a safe alternative for the peanut butter.
Science Fair Project Idea
thumbnail Do you like making things with play dough or modeling clay? Wouldn't it be cool if you could add a bunch of lights to your creations? In this science project, you will make play dough that conducts electricity, and we will introduce you to some new types of circuits so you can add more lights to your artistic creations. This science project is the second in a three-part series on "squishy circuits," which can all be done with the same materials. We recommend doing the science projects in order. Read more
Elec_p074
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Time Required Average (6-10 days)
Prerequisites You should understand the Introduction material in [# ProjectIdea Name="Elec_p073" Value="HtmlAnchor" HtmlText="Make Your Play Dough Light Up, Buzz, & Move!" #]—the first science project in the "Electric Play Dough" series—before doing this science project.
Material Availability This science project requires a Squishy Circuits Kit and ingredients to make conductive and insulating play dough. See the Materials and Equipment list for details.
Cost Low ($20 - $50)
Safety Ask for an adult's help when using the stove to make the conductive play dough. Never connect the battery pack's terminals directly to each other; this is called a short circuit and can make the batteries and wires get very hot. Do not connect the LEDs directly to the battery pack without using play dough; this will burn out the LEDs.
Science Fair Project Idea
thumbnail When you think about robots, chances are they are contraptions that you have seen on TV, in movies, or even in real life — and they are usually made of metal. What if you could make a soft robot that could bend, twist, or squirm like an octopus or an earthworm? Researchers at Harvard University have done exactly that, developing soft robots made of rubber and powered by air instead of electricity. In this project you will use their designs to build a soft robotic gripper of your own. Read more
Robotics_p020
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Time Required Long (2-4 weeks)
Prerequisites None
Material Availability This project requires some specialty materials. See the Materials and Equipment list for details. Note: "Time required" includes shipping for specialty materials. The experiment itself can be done in 1-2 days.
Cost Average ($50 - $100)
Safety Prolonged exposure to the silicone rubber used in this project can cause mild skin irritation. Disposable gloves are required for this project. Using a toaster oven (optional) requires adult supervision.
Science Fair Project Idea
thumbnail Have you ever wondered how yogurt is made and what makes some yogurts different from other yogurts? You may have noticed that most yogurt containers advertise that the yogurt contains "live cultures." This means that there are living bacteria in the yogurt! These amazing bacteria can turn plain old milk into a yummy yogurt treat. In this science project, you will investigate whether the bacteria affect what the yogurt feels, tastes, and smells like by making your own yogurt at home! Read more
MicroBio_p010
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Time Required Short (2-5 days)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety Requires parental supervision when cooking on the stove.
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