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Industry, Innovation and Infrastructure, Fifth Grade, Aerodynamics & Hydrodynamics Science Projects (26 results)

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Investigating Fluid Viscosity
Science Fair Project Idea
Scientific Method
You can measure the viscosity of a fluid using a glass tube and a marble with slightly smaller diameter than the tube. Seal one end of the tube. Fill the tube with the fluid to be tested. Drop the marble into to the tube and measure the time it takes to fall a fixed distance. Repeat the measurement several times, and use the average value. How does viscosity change with the amount of sugar dissolved in water? How does viscosity change with temperature? Read more
Make Your Own Hot Air Balloon
Science Fair Project Idea
Scientific Method
Have you ever looked up into the sky and seen not a bird, not a plane, but a hot-air balloon? They are definitely amazing and fun to watch! Do you think they are all the same size? Does size affect how long the hot-air balloon can fly? In this science fair project, you will launch hot-air balloons, powered by a toaster, and see how the size of the balloon affects its flight. Read more
Making It Shipshape: Hull Design and Hydrodynamics
Science Fair Project Idea
Scientific Method
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
Milk Does Your Body and a Boat Good—Design Your Own Milk Carton Boat
Science Fair Project Idea
Scientific Method
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, 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 to glide. Read more
Model Rocket Aerodynamics: Stability
Science Fair Project Idea
Scientific Method
What keeps a model rocket on course? How can you make sure a model rocket design is stable before you launch it? Find out in this project as you learn about center of mass, center of pressure, and their effect on a rocket's stability. Read more
Modifying a Car for Better Aerodynamics
Science Fair Project Idea
Scientific Method
Have you ever seen those cool wind tunnel pictures of cars with streams of smoke blowing over them? You do not need access to a wind tunnel to do a car aerodynamics science project! In this project you will use cheap, readily available materials—tape and yarn—to visualize airflow over a car. You will examine how you can affect the airflow over the car by making changes, like adding or removing accessories or making body modifications out of cardboard and duct tape. Maybe you can… Read more
Parachutes: Does Size Matter?
Science Fair Project Idea
Scientific Method
How does a parachute work? Do bigger parachutes work better than smaller parachutes? Find out in this science project if the size of the parachute matters. Read more
Rocking the Boat
Science Fair Project Idea
Scientific Method
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
Study Bottle Rocket Performance with Electronic Sensors
Science Fair Project Idea
Scientific Method
Rocket design and operation is a fascinating field and analyzing the flight path provides insight into the rocket's performance. In this project, you will take measurements of the flight path to evaluate how a change in the rocket design or launch procedure impacts the rocket's performance. Initially, while the bottle rocket expels water (or the rocket expels exhaust), the rocket gets a boost. This push is referred to as thrust and projects the rocket forward. Earth's gravity pulls the rocket… Read more
The Paper Plate Hovercraft
Science Fair Project Idea
Scientific Method
You can make a very simple hovercraft with a stiff, disposable plate-a pie plate should work well-and a balloon. Glue a square of cardboard in the center of the bottom of the plate. Make a small hole through the center of both of these layers. Enlarge the hole slightly with a pencil. Push a balloon through the hole so that the opening is on the front side of the plate, and rest of the balloon sticks out from the back. Blow up the balloon, then set the plate down (balloon side up). What… Read more
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