You have some on you right now. It covers your entire body! It’s skin. You’ve lived with this stuff all your life, but how much do you really know about the skin that covers your body? Here are some fun facts that you may not know! Why does your skin get wrinkled when it stays in the water too long? How many square feet of skin does the average adult have? How much does skin weigh? What are the millions of holes in your skin for? How many sweat glands do you have in each square inch (2.5 cm) of skin? Find out more about your skin and amaze your family and friends with these fun facts. Ages 8 and up. All measurement 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.