Sam sees the bigger picture
Sam is 14 and today he looked at objects using a magnifying lens.
Most magnifying glasses are made from actual glass, but this one was made from a special plastic called silicon.
The lens makes things look bigger because it was much thicker in the middle than around the edges, this is what scientists call convex in shape. This convex shape bends the light waves of things viewed through it which causes Sam to see the object in unusual ways. When Sam held the magnifying lens close to his hand, the light waves were widened before he focused with his eyes which caused his hand to seem very large. This large hand image allowed Sam to see lots of details on his hand like the shape of his fingerprint and his palm lines very easily.