Could someone please edit this passage meant for Year-2 students for me? Thanks in advance.
A fly can walk upside down on the ceiling because of the pads on each of its six feet. If you look at a fly with a magnifying glass, you can see pads these clearly. Some scientists think that the pads are sticky and that enables the fly to stay on the ceiling. Others believe that the curved pads flatten out against the ceiling and hold out the way suction cups do.