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Science Fair Project Idea
thumbnail Do you enjoy sculpting animals and other three-dimensional creations with play dough and modeling clay? Imagine adding lights to a house you've built, or glowing eyes on a dinosaur you've created. There are countless possibilities! In this science project, you will make play dough that conducts electricity so you can add lights to your three-dimensional creations. This science project is the third in a three-part series on squishy circuits, which can all be done with the same materials. We… Read more
Elec_p075
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Time Required Average (6-10 days)
Prerequisites This science project requires understanding the Introduction material in the first two "Electric Play Dough" science projects: [# ProjectIdea Name="Elec_p073" Value="HtmlAnchor" HtmlText="Make Your Play Dough Light Up, Buzz, & Move!" #] and [# ProjectIdea Name="Elec_p074" Value="HtmlAnchor" HtmlText="Rig Your Creations with Lots of Lights!" #]
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 What happens if you hold a magnet next to water? You might think that water is not affected by magnetism, but in fact, the water is slightly repelled. Believe it or not, if the magnet is strong enough, you can use this effect to levitate objects that contain water, including insects and even small frogs! In this science project, you will learn about diamagnetism. Materials that are repelled by both poles of a magnet are called diamagnetic. The magnets you will use are not strong enough to float… Read more
MatlSci_p041
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Time Required Average (6-10 days)
Prerequisites None
Material Availability You will need to purchase some materials online. See the Materials and Equipment list for details.
Cost Average ($50 - $100)
Safety Neodymium magnets are extremely strong, and must be handled with care to avoid personal injury and damage to the magnets or to electronic appliances. Minor injury is possible and you should wear safety goggles whenever working with these magnets. Please read the important safety notes in the Experimental Procedure before beginning this science project.
Science Fair Project Idea
thumbnail Have you ever wondered why a plant that grows well in one environment may not survive in a different environment? For example, plants that grow well in a wet jungle would probably not do so well in a dry desert, lacking enough water. This is because plants have adapted to their specific environment. Some plants have even adapted to tolerate chemicals that would usually be toxic, such as various heavy metals. In this plant biology science project, you will investigate whether different… Read more
PlantBio_p047
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Time Required Very Long (1+ months)
Prerequisites None
Material Availability The Arabidopsis thaliana seeds for this science project need to be specially ordered in advance with the help of a parent or teacher. See the Materials and Equipment list for details.
Cost High ($100 - $150)
Safety Take all proper safety precautions when working with the heavy metals. Wear gloves. You may need additional protection, such as goggles.
Science Fair Project Idea
thumbnail This science project presents an interesting puzzle. A disk of wood will float face-up; that is, with its circular cross-section parallel to the surface of the water. A long log of wood, however, floats on its side with the circular cross-section perpendicular to the surface of the water. If you think about it, disks and logs are both cylinders. Is there some intermediate length of cylinder that floats with the circular cross-section at a tilted angle? Try this experiment to find out! Read more
Aero_p021
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Time Required Short (2-5 days)
Prerequisites None
Material Availability Readily available
Cost Low ($20 - $50)
Safety Adult supervision is recommended when using the wood saw. Always wear safety goggles when working with tools.
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 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 In our , we provided you with a template file that included default material properties and physics simulation settings. These settings include friction, gravity, and temperature — all of which can drastically change how fast your robots move. However, we did not explain what exactly all these physics simulation settings meant, or how to change them. You can access the physics settings through the Physics Settings tab after entering the Physics Sandbox mode, as shown in Figure 1 below: … Read more
Robotics_p019
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Time Required Short (2-5 days)
Prerequisites Familiarity with VoxCAD software. We recommend completing our [# ProjectIdea Name="Robotics_p016" Value="HtmlAnchor" HtmlText="introductory VoxCAD project" #] first.
Material Availability This project requires the free VoxCAD software and a computer running Microsoft® Windows®.
Cost Very Low (under $20)
Safety No issues
Science Fair Project Idea
thumbnail This is a straightforward project that shows you how data can be digitized and stored on magnetic recording media. You'll learn how alpha-numeric characters are digitized, and you'll use bar magnets to represent the individual data "bits." You'll also learn about how much information can be stored in a small space (recording density), and how magnetic data can be erased. Read more
Elec_p026
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Time Required Very Short (≤ 1 day)
Prerequisites None
Material Availability A large number of specialty magnets are needed for this project.
Cost Low ($20 - $50)
Safety No issues
Science Fair Project Idea
thumbnail Jumping discs can be a fun toy to play with, and with their sudden POP!, they can even be a good way to startle people who have never heard them before. Jumping discs use a neat trick to jump. They are made of two different types of metal, and these metals expand when they heat up (or shrink when they cool down), but not by exactly the same amount. In this science project you will explore how temperature affects the reactions of your jumping discs— and how to get the timing right if you… Read more
Phys_p094
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Time Required Average (6-10 days)
Prerequisites None
Material Availability This project requires buying bimetallic jumping discs. See the Materials and Equipment list for details.
Cost Very Low (under $20)
Safety Adult supervision is required during use of a hair dryer as a heat source. Hair dryers can cause burns or fires if used improperly and should not be operated by small children alone.

Do not use the jumping discs on surfaces that are fragile or can be easily scratched.

Science Fair Project Idea
thumbnail You have probably read all about forms of alternative energy like solar and wind power. But what about human power? With the aid of a coil of wire and some magnets, you can generate electricity with nothing more than a flick of your wrist. In this project, you will build a small hand-powered electrical generator that can power a series of tiny lights. Get ready to save the planet and get some exercise at the same time! Read more
Energy_p009
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Time Required Average (6-10 days)
Prerequisites None
Material Availability This science project requires some specialty electronic components. A kit is available from the [# Link Name="Energy_p009.16" Value="HtmlAnchor" #]. The Time Required estimate includes time for gathering specialty materials. The actual project only takes 1 day.
Cost Average ($40 - $80)
Safety

Neodymium magnets are very strong and can pinch your fingers when they come together. You should keep them away from pets and small children because they can cause serious harm if ingested. As with any magnet, you should keep them away from computers, cell phones, and credit cards.

Adult supervision is required when using a hobby knife.

Science Fair Project Idea
thumbnail How do scientists "copy" DNA? They use a process called the Polymerase Chain Reaction, or PCR. The key to making this process work is having a short piece of DNA, called a primer, that will stick to the larger piece of DNA you want to copy, called a template. In this science project, you will test how the number of matches and mismatches in a primer will affect its ability to stick, or anneal, to the DNA template during PCR. Read more
BioChem_p017
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Time Required Very Short (≤ 1 day)
Prerequisites None
Material Availability A large number of magnets are needed.
Cost Low ($20 - $50)
Safety No issues
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