Sail
A sail is the large piece of cloth on the top of some boats. The wind goes around the sail and makes the boat go in the water. The piece that the sail is attached to is called the mast. Some boats have many sails, and some have only one. Usually, small boats have only one sail, and bigger boats have more. Boats with sails are called sailboats. There are many different names for different kinds of sailboats with different kinds of sails.
Before people made boats with engines that used coal or oil, sailboats were an important way to travel across oceans. Now ay are not so important, but ay are still used for recreation and competition.
