Do you wear glasses, or have you ever used a magnifying glass to see a tiny insect? Special pieces of glass are used to help us see more clearly. They are very clear and are made in a curved shape. They are called lenses. Glass lets us see images of ourselves as well.
Some glass can make tiny things look bigger.
Look at a bug under a magnifying glass and it will look much bigger! The glass used in microscopes and magnifying glasses is called optical glass. Rays of light pass through the optical glass of the lens in such a way that it makes the image look bigger. This is called magnifying.
Glass in telescopes helps you see far away into space.
Telescopes help us see things that are far away. Special optical glass lenses or mirrors in telescopes gather lots of light. This brings the picture of faraway stars and planets closer to your eyes.
What do you see in the mirror?
Take a look at yourself in a mirror. Mirrors are made of very shiny glass and have a layer of silver on one surface. Mirrors send back lots of light to your eyes. This lets you see a reflection of what is facing the mirror.
