These are montessori style cards. I use them in my preschool just to introduce them to birds. But for older children, you can print two copies and have them match, or cut off the description and have them match it to the picture. They can be used for any grade as a study tool.
Print on card stock and laminate then cut the cards out. Or, print out on regular paper, glue them to colored construction paper, cut them out and then laminate them.