After a day of washing and drying clothes, I gathered aside the items of clothing to be hung up in a separate basket. I wanted to make sure to get rid of any wrinkles in them before hanging them up. I then brought the laundry basket upstairs and brought the ironing board out of the closet. I unfolded the ironing board and got out the iron from the closet as well. I brought the iron to the sink so I could fill it in order to use the steam function. I then brought the iron to set it upon the ironing board. I plugged the iron's cord into the socket. As I heard the iron start to heat up, I set the first item to be ironed on the board. I flattened the pants on the board so the creases would be right at the seams. As I grazed the iron across the pants, the wrinkles started to erase and I continued the process with the rest of the clothing items in the basket. 
Question: Why does steam come out of it?
because when water is heated it produces steam