This page features a parts of the eye diagram with a printable worksheet to go with. Students will learn how to label the parts of a human eye by dragging and dropping labels in the correct position. It is an online game worksheet that can be played for free and repeated until students catch this challenging biology skill. The eye functions almost like a camera. Like a camera, the eye has a lens that it uses to focus on objects. For objects to be seen, some form of life has to shine on them. When light shines on them, we capture the rays from the light through the lens onto the retina where an image is built. The eye also have optical nerves that transmit the images in sees to the brain for interpretation. The eye diagram is a fun anatomy lesson children will love. This exercise is for students in 1st, 2nd, 3rd, 4th, 5th, 6th and 7th grades.