A new shadow friend on the ground causes Dawn to find out more about what makes shadows come and go! Shadow play becomes the game of the day when .\rbr\rbrHave you ever wondered why your shadow is longer sometimes and shorter others? It turns out it all has to do with that marvelous big ball of light in the sky; The .\rbr\rbrWhy Do We Have Shadows? The reason why we have shadows is because your body blocks the light and then the shape of your body appears on the ground.\rbr\rbrLearn about Shadow with Dr. Binocs. Hey kids, have you ever heard of the term shadow? Did you know how shadows are formed? Heres Dr. Binocs with Mr.