*Note: This is an abbreviated Project Idea, without notes to start your background research, a specific list of materials, or a procedure for how to do the experiment. You can identify abbreviated Project Ideas by the asterisk at the end of the title. If you want a Project Idea with full instructions, please pick one without an asterisk.
Does your car have a roof rack that you use sometimes (e.g., for skis, or bicycles)? How is your gas mileage affected by the increased drag? Measure the car's average gas mileage with and without the rack. Is there an effect? Is there more of an effect at higher speed? Figure out a way to estimate gas mileage during city driving and during highway driving to find out.
The Ask an Expert Forum is intended to be a place where students can go to find answers to science questions that they have been unable to find using other resources. If you have specific questions about your science fair project or science fair, our team of volunteer scientists can help. Our Experts won't do the work for you, but they will make suggestions, offer guidance, and help you troubleshoot.
If you like this project, you might enjoy exploring these related careers:
Cars are an important part of our daily lives. We depend on them to perform everyday tasks—getting to and from school and work, sports practice, grocery shopping, and various errands—and also to keep us safe while doing so. Our cars can keep us cool or warm while we drive them, and they even help us find our way. The automobile is made up of complicated braking, steering, and electrical systems, in addition to the engine and drive train. All of these systems require a tremendous amount of engineering, which is the responsibility of automotive engineers. They develop the components and systems that make our vehicles efficient and safe.
Mechanical engineers are part of your everyday life, designing the spoon you used to eat your breakfast, your breakfast's packaging, the flip-top cap on your toothpaste tube, the zipper on your jacket, the car, bike, or bus you took to school, the chair you sat in, the door handle you grasped and the hinges it opened on, and the ballpoint pen you used to take your test. Virtually every object that you see around you has passed through the hands of a mechanical engineer. Consequently, their skills are in demand to design millions of different products in almost every type of industry.
Aerospace Engineering & Operations Technician
Aerospace engineering and operations technicians are essential to the development of new aircraft and space vehicles. They build, test, and maintain parts for air and spacecraft, and assemble, test, and maintain the vehicles as well. They are key members of a flight readiness team, preparing space vehicles for launch in clean rooms, and on the launch pad. They also help troubleshoot launch or flight failures by testing suspect parts.
You can find this page online at: http://www.sciencebuddies.org/science-fair-projects/project_ideas/Aero_p028.shtml
You may print and distribute up to 200 copies of this document annually, at no charge, for personal and classroom educational use. When printing this document, you may NOT modify it in any way. For any other use, please contact Science Buddies.