Jump to main content

Seventh Grade, Aerodynamics & Hydrodynamics Science Projects (31 results)

You've seen for yourself, or in videos, planes flying, rockets hurdling towards space, boats racing through the water and submarines exploring the depths of the ocean. Have you ever stopped and thought about the aerodynamics and hydrodynamics involved in their operation? There is a lot of interesting science that goes into how they work!

Search
Refine Results
Filter by
Coding Projects
Sort by
Archimedes Squeeze: At What Diameter Does an Aluminum Boat Sink?
Science Fair Project Idea
Scientific Method
Where do you get your best ideas? At school with your friends? When you are out for a bike ride? Over 2,200 years ago, a scientist named Archimedes got one of his best ideas when he sat down in his bath. Eureka! He went running through the streets without even bothering with his clothes. What was he so excited about? He had discovered that when objects, like his body, are placed in water, water is pushed out of the way. Have you noticed that, too? The weight of the water that is pushed out of… Read more
Make the Wind Work for You!
Science Fair Project Idea
Scientific Method
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
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
Bottled-up Buoyancy
Science Fair Project Idea
Scientific Method
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
The 'Ultimate' Science Fair Project: Frisbee Aerodynamics
Science Fair Project Idea
Scientific Method
Are you good at tossing a Frisbee®? It is great when you throw a perfect, arcing curve, right on target! If you can do that, you have already trained your arm on the aerodynamics of Frisbee flight. Why not treat your brain to some Frisbee science with this project? Read more
The Wright Stuff: Using Kites to Study Aerodynamics
Science Fair Project Idea
Scientific Method
The Wright brothers used kites extensively to test their design ideas in the years leading up to their first successful airplane flight. With this science project, you'll learn about kite aerodynamics, and then come up with your own hypothesis about building or flying a kite. You can test your hypothesis two ways: with an online kite simulation program from NASA, and outdoors with the real thing! A great feature of this science project is that it has many possible variations, so you can decide… Read more
Why Winglets?
Science Fair Project Idea
Scientific Method
Have you ever noticed how some jet planes have small, vertical projections as the tips of the wings? They're called winglets. What are they there for? Read more
Do Submarines Need Fins?
Science Fair Project Idea
Scientific Method
What keeps a submarine from spinning out of control? In this science project, you can investigate how submarines use stabilizing fins to move forward. You might even figure out the secrets to maneuvering a submarine! Read more
Riding on Air—Build a Real Hovercraft
Science Fair Project Idea
Scientific Method
Looking for an exciting new mode of transportation? In this science fair project, you will build a working hovercraft that will glide over surfaces on a cushion of air. And it's simpler to build than you might think! Read more
The True Cost of a Bike Rack: Aerodynamics and Fuel Economy
Science Fair Project Idea
Scientific Method
Race car drivers need every advantage they can get to give them the competitive edge in a race. In addition to human factors, like driving skill and reaction time, their cars must overcome physical forces, like air resistance, to maintain their high speeds. While this science project will not have you driving around a race track at 200 miles per hour, you will get to test how increased air resistance affects a real car's fuel economy. You will do this by measuring and comparing the gas mileage… Read more
1 2 3 4 >

Explore Our Science Videos

Quick Links X
Top
Free science fair projects.