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Science Fair Project Idea
You may be familiar with permanent magnets—the kind that hang on a refrigerator. But did you know that other magnets, called electromagnets, can be turned on and off? When turned on, electromagnets act just like permanent magnets, but if you turn them off, their magnetic properties disappear. Electromagnets are an important part of many electronic devices, like motors, loudspeakers, and hard drives. You can create an electromagnet with a simple coil of wire and a battery. In this project,… Read more
Elec_p035
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- Less Details
Time Required Average (6-10 days)
Prerequisites None
Material Availability This project requires specialty items, available in a Science Buddies kit. See the Materials and Equipment section for details. Estimated project time includes shipping for the kit.
Cost Low ($20 - $50)
Safety The electromagnet can become hot during periods of extended use.
Science Fair Project Idea
Landslides are powerful geological events that happen suddenly, causing fear in people who live in areas with unstable hills, slopes, and cliff sides. Landslides damage the surrounding habitat and can destroy homes in their path. But what causes landslides? Can slides happen on any slope, or do slopes have to have certain characteristics, such as a steep angle and a specific material mass? In this geology science project, you will learn about the different types of landslides and the… Read more
EnvEng_p035
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- Less Details
Time Required Very Short (≤ 1 day)
Prerequisites None.
Material Availability Readily available
Cost Very Low (under $20)
Safety No issues.
Science Fair Project Idea
Put your engineering skills to the test to see if you can build a machine—powered by nothing but gravity—that will automatically sort out two different sizes of plastic spheres. That might seem like a strange task, but have you ever used a coin sorter to separate pennies, nickels, dimes, and quarters? How about using a sifter in the kitchen to separate fine grains of flour or sugar from bigger lumps? Machines that can automatically sort objects or particles of different sizes are… Read more
ApMech_p051
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- Less Details
Time Required Short (2-5 days)
Prerequisites None
Material Availability Readily available
Cost Low ($20 - $50)
Safety Adult supervision recommended for cutting materials that can create sharp edges, like plastic cups.
Science Fair Project Idea
Have you ever ridden on a carousel, or a merry-go-round, at an amusement park? On a carousel, you usually get to take a seat on a wooden horse or other animal that spins around and around as the carousel is turned on and powered by electricity. Another smaller type of carousel that people can have in their homes is a candle carousel, which is powered by heat from candles. In this science project, you will get to make your own candle carousel and investigate how the spinning speed of the… Read more
Aero_p051
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- Less Details
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 Low ($20 - $50)
Safety Adult supervision is needed for using matches, lighting candles, and using epoxy. Follow all safety precautions when using epoxy. Adult supervision is recommended when handling lit candles.
Science Fair Project Idea
Have you ever looked through a magnifying lens? Why do things look bigger when you look at them through the magnifying lens? Even though the object appears to get larger, it really stays the same size. Each lens has its own unique power of magnification, which can be measured with a ruler. How powerful is your lens? Read more
Phys_p021
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- Less Details
Time Required Very Short (≤ 1 day)
Prerequisites None
Material Availability Readily Available
Cost Very Low (under $20)
Safety No hazards
Science Fair Project Idea
What is it that famous photographers do to make their images so pleasing to the eye? Find out if simple rules of geometry can make you a better photographer. Read more
Photo_p012
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- Less Details
Time Required Very Short (≤ 1 day)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety No issues
Science Fair Project Idea
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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- Less Details
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
Science Fair Project Idea
Do you like playing with squishy Play-Doh® or modeling clay? Wouldn't it be cool if you could add lights, sound, or even motion to your Play Doh creations? In this project, you will use Play Doh that conducts electricity, which will allow you to connect lights, motors, and buzzers to your sculptures! This project is the first in a three-part series on "squishy circuits," which can all be done with the same materials. We recommend doing the projects in order. Read more
Elec_p073
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- Less Details
Time Required Average (6-10 days)
Prerequisites None
Material Availability This project requires a Squishy Circuits Kit. See the Materials and Equipment list for details.
Cost Low ($20 - $50)
Safety 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 Doh; this will burn out the LEDs.
Science Fair Project Idea
Today magnetic recording is used in audio and video cassette recorders, and computer disk drives. Did you know that you can also use an electromagnet to record and play back from a steel wire? In fact, this is how magnetic recording got started. This project shows you how to build a simple wire recorder. Read more
Elec_p015
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- Less Details
Time Required Long (2-4 weeks)
Prerequisites None
Material Availability Specialty items
Cost Average ($50 - $100)
Safety Eye protection required during construction
Science Fair Project Idea
Does your hair go crazy when the weather turns damp? Did you know that strands of hair can relax and lengthen when the humidity increases and then contract again when the humidity decreases? In fact, hair strands can be used as the basis for a hygrometer, a device which measures the humidity level in the air. Can a human hair hygrometer also detect changes in hair structure caused by chemical lightening? This project shows you how to find out. Read more
MatlSci_p020
+ More Details
- Less Details
Time Required Long (2-4 weeks)
Prerequisites None
Material Availability Specialty items
Cost Average ($50 - $100)
Safety Adult supervision required for working with hydrogen peroxide-based hair lighteners. Wear protective gloves and eye wear.
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