In studying about our Fives Senses, we have enjoyed exploring our sense of touch, hearing, and taste. Our most recent exploration has been with our sense of sight. We rely very much on our sight to move around and see things every day. Our eyes are very complex in how they work. Home Science Tools gives a great explanation: How do our eyes work? The little dark circle in the center of each of your eyes lets light in. It is called a pupil. If you are in a dark place where no lights at all are on, can you see anything? No, you can’t because our eyes need light to be able to see! Once the light goes in, it hits a part inside at the back of your eye that is very sensitive to light. This part is called the retina. When light touches the retina, it makes an upside-down picture of whatever you are looking at. A large nerve called the optic nerve carries the image to your brain where it gets turned around so that you see it the right way instead of upside-down!