Are lily pads a type of fern?

No, lily pads are not a type of fern. They are the leaves of aquatic plants belonging to the family Nymphaeaceae, commonly known as water lilies. Ferns, on the other hand, are a distinct group of vascular plants that reproduce via spores and do not produce flowers or seeds. While both ferns and lily pads can be found in similar environments, they are fundamentally different types of plants.