Topic about boats

At Waikawa Bay School we are doing topic about boats. My one is what parts are there on a boat. I know quite a lot of it. There is a mast and a winch, boom, rudder, hull, deck, tiller and an anchor. Thats most of what I know. A mast holds a sail and a winch puts up a sail. When you turn the steering wheel on a boat it turns the rudder that steers the boat. A hull is the bottom of the boat. A deck you can use for all sort of things, it is the part you walk on outside on the boat. The anchor is for staying somewhere, you have to put it down to the sea bottom.