Bicycle

A bicycle is a machine that helps people move quickly without using a car or walking. It has two wheels and pedals that you push with your feet to make it go forward. There's a chain that connects the pedals to the back wheel, which helps move the bike when you pedal.

The bicycle also has a few other parts that help you control it. There are handlebars that you hold onto when you ride, and they let you steer the bike in different directions. The brakes are also important, and they help you stop the bike when you need to.

Riding a bicycle is a fun way to get exercise, and it can take you to new places that you might not have seen before. But it's also important to be safe when riding a bike. Always wear a helmet to protect your head in case you fall, and make sure you follow the rules of the road, like stopping at stop signs and not riding too close to cars.