They sure do! We teach that to the kids in our weather/clouds unit. They call it a " mare's tail" day. So pretty. If you squint, it almost looks like sand at the bottom....in a big desert.
@espyetta I was trying to remember the name "mare's tail" for my title but it has been a long time since I was in elementary school!! ;~} Thanks, MaryBeth. It sure does. Or it could be a thicker mane!