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Others Like “Do Submarines Need Fins?”

Science Fair Project Idea
thumbnail 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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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
thumbnail Renewable energy is the energy that is extracted from natural sources, such the Sun (solar), earth (geothermal), wind, and water (hydropower). These sources are renewable because they can be replenished by the same natural sources within a short period of time. Hydropower energy is extracted from moving water, like ocean wave energy and tidal energy. In this energy science fair project, you will make a model of a tidal barrage (also known as a dam) and investigate how emptying the tidal barrage… Read more
Energy_p028
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Time Required Short (2-5 days)
Prerequisites You will need access to a drill and hole saws.
Material Availability Readily available
Cost Average ($50 - $100)
Safety Minor injury is possible. Use caution when using a drill. Always wear safety goggles when working with power tools. Adult supervision is required.
Science Fair Project Idea
thumbnail When a ship rocks back and forth, it can make people seasick. Even worse, it can make it dangerous for jets to land on aircraft carriers. For these reasons and many others, it's important for engineers to design bilge keels (or fins) to keep boats from rolling back and forth. Become an engineer for a day and discover the best way to keep from rocking the boat in this engineering science fair project! Read more
Aero_p038
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Time Required Short (2-5 days)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety Have an adult help you when using the razor blade or knife. If you are testing in a pool, be sure to have an adult with you at all times.
Science Fair Project Idea
thumbnail The ocean is a wondrous force of nature. It affects the weather, and provides us with food and free and renewable energy to power our lives. How can the ocean provide us with free and renewable energy? One way is to extract the energy that is in the waves. There are many kinds of power systems that can be installed to extract energy from the waves, depending on the location. In this energy and power science project, you will build and test a simple model of an oscillating water column device to… Read more
Energy_p037
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Time Required Average (6-10 days)
Prerequisites You should have fairly easy access to the ocean or to a deep body of water. Find a location where the surface of the water is within easy access of a pier, a dock, or a boat slip, and where the water is about 5 feet deep. You could also do this project in a swimming pool.
Material Availability See the Materials and Equipment list for more details.
Cost High ($100 - $150)
Safety Be sure to wear safety equipment, such as safety goggles and gloves, when working with power tools and other equipment. Parental supervision is required.
Science Fair Project Idea
thumbnail How does a helicopter generate enough lift to fly? How does a speedboat get moving fast enough to pull someone on water skis? Here's a project on designing propellers to do the job. Read more
Aero_p018
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Time Required Average (6-10 days)
Prerequisites Previous experience with aerodynamic design (e.g., model airplanes, gliders) is suggested.
Material Availability Specialty items
Cost Low ($20 - $50)
Safety No issues
Science Fair Project Idea
thumbnail Earth is an amazing planet. It has everything that we need: food, shelter, and water. Sure, we need water to drink, but have you thought about using water to create energy? Moving water has a lot of energy and all we need to do is to harness it. Moving water made the Grand Canyon. That took a lot of energy! In this science fair project, you will demonstrate the power of water by converting the kinetic energy in moving water to mechanical energy, which will lift a small weight. Read more
Energy_p021
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Time Required Short (2-5 days)
Material Availability A drill is needed.
Cost Low ($20 - $50)
Safety An adult’s help will be required to drill holes.
Science Fair Project Idea
thumbnail Do you love roller coasters and other kinds of exciting rides? Are you a thrill-seeker? Well, this is the science fair project for you! What makes a ride so thrilling that people want to ride it over and over again even though it scares them? Is it the speed, the twists and turns, the vertical drops? In this science fair project, you will build and use an accelerometer to figure out what makes a roller-coaster ride worth standing in line for. Oh, and if Mom and Dad ask what an amusement park… Read more
ApMech_p041
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Time Required Short (2-5 days)
Prerequisites Access to an amusement park.
Material Availability Readily available
Cost Average ($50 - $100)
Safety Make sure that you and your volunteers are healthy enough to ride roller-coaster rides. Always take a break and rest if you start to feel ill. Adult supervision is recommended.
Science Fair Project Idea
thumbnail The world's oceans are home to the most strange and amazing creatures. What do scientists know about these deep-sea animals and how can they study them easily? One way to learn about these animals in their homes is to use underwater robots. Underwater robots can record data that would be difficult for humans to gather. But what are robots and how are they made? In this robotics engineering project, you will discover what makes up a simple robot and build and test your own underwater robot. Read more
Robotics_p002
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Time Required Average (6-10 days)
Prerequisites None
Material Availability To build an underwater robot you will need a motor and a model boat propeller. See the Materials and Equipment list for details.
Cost Low ($20 - $50)
Safety You will need glue and epoxy to waterproof the motor for the robot. Follow the instructions that come with the glue and epoxy and always work in a well-ventilated area. If you have a latex allergy, you will have to exercise great caution with the balloon and ask a volunteer to help you. Keep fingers away from the spinning propeller to prevent injury. Do not test the robot in saltwater.
Science Fair Project Idea
thumbnail Water is an interesting thing. We drink it, swim in it, and wash ourselves with it. We can get energy from water by damming it and sending it through a turbine. But did you know that we can use the natural electrical charges present in water and a Kelvin electrostatic generator to create sparks? You can even use a Kelvin electrostatic generator to temporarily light a bulb! Now that is one bright idea! Read more
Elec_p069
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Time Required Average (6-10 days)
Prerequisites None
Material Availability You will need to visit your local hardware store to purchase plumbing items to build the Kelvin electrostatic generator. You will also need a hand saw, a drill, a heat gun, a digital scale, a fan, and a dehumidifier. See the Materials and Equipment list for details. Cost of the project may be lower depending on what tools you already have available.
Cost High ($100 - $150)
Safety Parts of the Kelvin electrostatic generator require use of a hand saw and a drill. Wear safety goggles when using power tools. Adult supervision is required.
Science Fair Project Idea
thumbnail Alternative energy sources are a big deal these days. One such source is the wind. Find out how a wind turbine can use the power of the wind to generate energy in this science fair engineering project. You'll design various blades to find out which produces the most energy, and put the wind to work for you! Read more
Aero_p040
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Time Required Short (2-5 days)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety Use caution when using the drill. Always wear safety goggles when working with power tools. Adult supervision is recommended.
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