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Science Fair Project Idea
Have you ever wondered how a ship made of steel can float? Or better yet, how can a steel ship carry a heavy load without sinking? In this science project you will make little "boats" out of aluminum foil to investigate how their size and shape affects much weight they can carry and how this relates to the density of water. Read more
Aero_p020
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Time Required Short (2-5 days)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety No issues
Science Fair Project Idea
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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- Less Details
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
Do you dream about making deep, undersea voyages? Let this project take you 20,000 leagues under the sea! Investigate how submarines dive and surface by changing their buoyancy in this fun project. Read more
Aero_p034
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- Less Details
Time Required Very Short (≤ 1 day)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety Have an adult help you when using the razor blade or knife, as well as the drill. Always wear safety goggles when working with power tools. If you are performing the experiment in a pool, be sure to have an adult with you at all times.
Science Fair Project Idea
Who'd have thought that drinking milk can lead to a pretty cool boat? Boat design is an important and active area of engineering. In this science fair project, which was inspired by a PBS DragonflyTV episode, you will design and build different kinds of model boats out of milk cartons. Examples of the types of designs you might test include a raft, a catamaran, and a V-shaped hull. Once the model boats are built, you will test key features, such as stability, maneuverability, and their ability… Read more
Aero_p037
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Time Required Short (2-5 days)
Prerequisites For this science project, you will need access to a shallow beach or pool where the boats can be safely tested.
Material Availability Readily available
Cost Low ($20 - $50)
Safety Adult supervision is required when the boats are tested in the water. Wear life jackets if you plan to get into the water. Don't go too far away from shore.
Science Fair Project Idea
"Swing me higher, Mommy, higher!" Kids love to ride the swings at the playground. The back-and-forth motion of a swing demonstrates the physics of a pendulum. In this experiment, you will investigate the factors that affect the speed and duration of a pendulum's swing, also called an oscillating motion. You can even use your phone and Google's app to record your pendulum's movement and determine its period of oscillation. Read more
Phys_p016
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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
What are some of the ways we keep track of time? We have alarm clocks, wristwatches, and cell-phone clocks, to name a few. Just a few hundred years ago, our ancestors did not have any of these conveniences, yet they found ways to tell time. How? By using devices such as water clocks. In this science project, you will follow in the footsteps of early engineers and build a water clock that tracks time for three hours. Read more
ApMech_p047
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Time Required Average (6-10 days)
Prerequisites None
Material Availability You will need to purchase a ring stand or build a stand to hold the water clock. See the Materials and Equipment list for details.
Cost Low ($20 - $50)
Safety Use caution when using tools like hacksaws and hammers. Adult supervision is required.
Science Fair Project Idea
Sailboats, tugboats, barges, ocean liners, submarines are all different boats with different shapes. How does the shape of a boat's hull affect how easily it moves through the water? This project shows you how you can investigate this question using a homemade water trough and model boat hulls. Read more
Aero_p019
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Time Required Average (6-10 days)
Prerequisites None
Material Availability Readily available
Cost Average ($50 - $100)
Safety Adult supervision recommended
Science Fair Project Idea
The movement of satellites is intriguing, but how do they orbit the way they do? Aerospace engineers run calculations and set up computer models to help them predict how satellites move in space, but in this astronomy science project, you will create a physical model with marbles, clay, and a cookie sheet to help you study how satellites move in space and learn from your observations. Read more
Astro_p041
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Time Required Very Short (≤ 1 day)
Prerequisites None
Material Availability Readily available
Cost Low ($20 - $50)
Safety No issues
Science Fair Project Idea
Have you ever dreamed of a world where you could take the scraps from last night's dinner and toss them into your car's fuel tank and make gas? Well, we're not quite in "Back to the Future" yet, but in this energy science fair project, you'll discover that food scraps, dead plants, sawdust, and other decaying organic matter, called biomass are a rich source of energy. You can get energy out of biomass by burning it, turning it into a liquid, or by turning it into a gas called biogas. You've… Read more
Energy_p027
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Time Required Long (2-4 weeks)
Prerequisites This science fair project requires access to a well-ventilated area, away from open flame or electrical sparks.
Material Availability A small quantity of fresh cow manure is required.
Cost Low ($20 - $50)
Safety This science fair project produces a small amount of a flammable gas, so it must be conducted in a well-ventilated area, away from any source of open flame or source of electrical sparks. Use caution and have an adult's help when using the bleach, as it can cause chemical burns.
Science Fair Project Idea
If you live in an area where earthquakes happen, you might be especially interested in this science project. You will learn how to build your own seismograph and how to use it to detect ground motion. Read more
Geo_p017
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Time Required Long (2-4 weeks)
Prerequisites You will need access to some basic wood shop tools and experience using them for this science project.
Material Availability Readily available
Cost Low ($20 - $50)
Safety Adult supervision is required when using power tools and taking measurements outdoors near traffic.
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