Science Buddies
Science Buddies: Gears Go Round!
Music boxes, bicycles, and clocks all have one thing in common: GEARS. You might say that gears make the world turn, since they are in so many mechanical instruments. How do they work and how do you know which gears to use? Find out in...
Science Buddies
Science Buddies: Hey Gear Heads! The Physics of Bicycle Gear Ratios
Here's an abstract of a project from Science Buddies that asks you to experiment with bicycle gears and the circumference of the wheel to determine revolutions per minute.
Curated OER
Kids Health: Gearing Up for Bicycle Safety
This resource provides information about how to teach children about bicycle safety.
PBS
The Math of Bicycles: Wheel Figure This Out (Grades 4 7)
Several good activities here. Look particularly at Wheel Figure It Out (which is the opening page) and Gearing Up. There are answers to the very good questions at the bottom of each.
PBS
Pbs Learning Media: Cyberchase: Bianca Gets in Gear
Bianca visits a bike shop and learns how bicycle gears work in this Cyberchase video segment. [3:26]
Other
Bicycling
Bicycling.com provides everything you need or want to know about road cycling, mountain biking, the correct gear, upcoming events, training advice, and cycling news.
Science Buddies
Science Buddies: Jack and Jill Went Up a Hill and Came Biking Down After
Are you a budding Lance Armstrong or Greg LeMond? Are you into cycling and speed? Then this is the science fair project for you. In this science fair project, you will determine the best gear ratio for your bike, to get the highest speed...
Exploratorium
Exploratorium: Drives and Gears
Discover the basic structure of the bicycle chain drive system, and find out how it has developed over the years.
Exploratorium
Exploratorium: Science of Cycling
Exceptionally well-designed site from Exploratorium, the museum of science, art, and human perception. Analyzes the physics of cycling associated with the use of gears, human-powered motion, braking and steering, and drafting.
PBS
Pbs News Hour: Building a Dream
This site talks about a young man who has started his own business and tells the story of how he started the company "2nd Gear Bicycles." Gives young entrepreneurs a great way to learn about starting your own business.
Centers for Disease Control and Prevention
Centers for Disease Control: Body and Mind: Activity Cards
Learn about sports and activities you can participate in to get in shape and have fun. Click on the name of a specific sport and read an "Activity card," with information on sports gear, safety, and more.
Library of Congress
Loc: Poetry 180: Machines
This poem describes the characteristics of an effective machine.
Exploratorium
Exploratorium: The Science of Cycling
Very informative site from The Exploratorium about the science of bicycling. You can learn about the development of the wheel, how gears work on a bike, even how brakes were developed. Perfect site for research on bikes.
Curated OER
The Science of Cycling
Very informative site from Exploratorium.com about the science of bicycling. You can learn about the development of the wheel, how gears work on a bike, even how brakes were developed. Perfect site for research on bikes.