Students of the Terrific Third Class set out to determine if the length of a shadow will change throughout the day, and if so, why? Equipped with a sense of curiosity, black sharpie markers, a cardboard map, and a straw set in a mound of clay, the class set out to find answers! What did they discover? Students discovered that the length of the shadows indeed changed throughout the day – getting shorter as we approached the noon hour and and lengthening once again throughout the afternoon until dismissal. Students correctly surmised the length of the shadow changed because as the earth rotates on its axis, the angle between the sun and any given point on the earth changes