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Others Like “What's the Fastest Way to Solve Rubik's Cube?”

Project Idea
thumbnail If you're the kind of person who has taken apart your Rubik's cube in order to grease the inside parts so it will move more smoothly, this could be a great project for you. We'll show you three sets of move sequences that accomplish specific rearrangements of the cube. Can you devise a way to solve the cube using only these three move sequences? Read more
Math_p025
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- Less Details
Time Required Long (2-4 weeks)
Prerequisites To do this project you should enjoy solving puzzles and thinking in three dimensions.
Material Availability Readily available
Cost Very Low (under $20)
Safety No issues
Project Idea
thumbnail This project challenges you to figure out how to make geometric patterns with Rubik's Cube. Leaving your cube in one of these positions makes it much more tempting to pick it up and 'fix' it. Can you figure out how to make a checkerboard, or a cube-within-a-cube? Can you make only the center piece a different color from the rest? Can you figure out how to solve the cube from these positions? Read more
Math_p024
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- Less Details
Time Required Long (2-4 weeks)
Prerequisites To do this project you should enjoy solving puzzles and thinking in three dimensions. This project requires starting with Rubik's Cube in the solved position, so you will need to know how to solve the puzzle in order to do this project.
Material Availability Readily available
Cost Very Low (under $20)
Safety No issues
Project Idea
One piece of Play-Doh can make many different shapes. Even though you can change the shape by squishing or stretching the Play-Doh, it is still the same size unless you add or take away some of the dough. Try this experiment to test how these changes in size and shape occur in each dimension. Read more
Math_p019
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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
Project Idea
Did you know that the average child sees 20,000 30-second TV commercials in just one year? That's a lot of encouragement to buy new toys, clothes, entertainment, and food. In this behavioral science fair project, you'll find out some other ways (besides commercials) that marketers use to try and get adults to buy products, like having them touch or hold an item. You'll find out if these methods work with kids, too, and if they increase how much people are willing to pay for a product. It's a… Read more
HumBeh_p045
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- Less Details
Time Required Long (2-4 weeks)
Prerequisites None
Material Availability Readily available
Cost Low ($20 - $50)
Safety No issues
Project Idea
thumbnail How can seawater from the oceans be turned into fresh water that is suitable for people to drink? Through a process called solar desalination! In this science project, you will make a solar desalination apparatus using readily available materials, and a power source that is free. How much water can the device produce, and is it still salty at all? What factors affect how effectively saltwater is turned into fresh water? Read more
EnvEng_p022
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- Less Details
Time Required Average (6-10 days)
Prerequisites None
Material Availability Some specialty items needed, see Materials list for details. For your convenience a Science Buddies Kit is available for purchase.
Cost Average ($50 - $100)
Safety A hand drill is needed for some steps. Adult assistance is needed for the steps involving a hand drill. All items in the Science Buddies Kit come pre-drilled, eliminating this safety issue.
Project Idea
A strobe light can illuminate an entire room in just tens of microseconds. Inexpensive strobe lights can flash up to 10 or 20 times per second. This project shows you how to use stroboscopic photography to analyze motion. Read more
Photo_p003
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- Less Details
Time Required Average (6-10 days)
Prerequisites This project requires camera with adjustable shutter speeds and lens apertures, a tripod and cable release.
Material Availability Specialty items
Cost Low ($20 - $50)
Safety No hazards
Project Idea
thumbnail Here's a project that uses direct solar power, gathering the sun's rays for heating/sterilizing water or cooking. It's a low-cost technology that seems to have everything going for it. Does it work? Can you find ways to improve it? Find out with this project. Read more
Energy_p018
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- Less Details
Time Required Average (6-10 days)
Prerequisites Sunlight, and fairly warm outside temperatures (>10°C, or 50°F).
Material Availability Readily Available
Cost Low ($20 - $50)
Safety Adult supervision recommended. The oven is designed to cook food or boil water, so use proper caution to avoid burning yourself.
Project Idea
thumbnail 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
Project Idea
thumbnail Have you ever dreamed about becoming invisible? Or about making something else invisible, like the mess all over your room? Invisibility may sound like the stuff of science fiction (remember Star Trek's "Cloaking Device"?), but in reality, military vehicles, like planes and ships, can be made less observable, or even invisible, to different detection methods—like radar, sonar, or infrared sensors—by using stealth technology. In this engineering science fair project, you'll find out… Read more
Phys_p075
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- Less Details
Time Required Average (6-10 days)
Prerequisites None
Material Availability Readily available
Cost Low ($20 - $50)
Safety You should never look directly into an LED flashlight, as it can cause eye damage.
Project Idea
thumbnail Digital cameras can be a great way to learn about photography. Most digital cameras today have LCD screens, so you get instant feedback on your photo. If you make a mistake, no problem, you just delete the picture. It's nice that you don't have to worry about the expense and bother of developing film! This project can help you learn to take better pictures. Read more
Photo_p014
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- Less Details
Time Required Average (6-10 days)
Prerequisites You'll need a digital camera that take pictures in manual mode (a grayscale, or 'black-and-white' mode, is nice to have but not essential). You will need to know how to change the shutter speed, lens aperture, and ISO setting. A tripod for the camera is nice to have, but not absolutely essential. You will also need a computer.
Material Availability Readily available
Cost Very Low (under $20)
Safety No issues
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