Our eyes are round objects that sit at the halfway point of our head. They are about one inch (25 mm) in diameter and come in a variety of colors. They allow us to see all the wonders of the world and beyond. We still don’t understand exactly how they work in transforming light into color and objects, but they do, and it’s amazing. Let’s see how much you know about eyes. Can you answer these questions? How many layers do your eyes have? How many colors can your eyes see? Who blinks more, adults or infants? Can light that we cannot see hurt our eyes? What is the difference between a mirage and a hallucination? Find out more about your eyes and amaze your family and friends with these fun facts. Ages 8 and up. All measurements in American and metric. The Educational Version has activities that meet Common Core Curriculum Standards. LearningIsland.com believes in the value of children practicing reading for 15 minutes every day. Our 15-Minute Books give children lots of fun, exciting choices to read, from classic stories, to mysteries, to books of knowledge. Many books are appropriate for hi-lo readers. Open the world of reading to a child by having them read for 15 minutes a day.