Magnifying Glass

light · tools · science

Makes things bigger. A magnifying glass has a curved lens that bends light rays to make objects appear larger than they really are. This lets you see tiny details you couldn't spot with your eyes alone.

Focuses sunlight. You can use a magnifying glass to gather sunlight in one tiny spot, making it hot enough to start a fire. This is because the curved lens concentrates all that solar energy into one point.

Helps with exploring. Scientists, jewelers, and stamp collectors use magnifying glasses every day to examine small objects closely. A good magnifying glass can make things look anywhere from 2 to 10 times bigger.

How it works. The lens is thicker in the middle than at the edges, which is called convex. When light passes through it, the light bends inward and brings all the rays together, creating a bigger, clearer image.

Old and useful. People have used magnifying glasses for hundreds of years to read tiny print, identify details in art, and study nature up close.