Untitled Q. How does a magnifying lens make things appear bigger. We see things by looking at the light that reflects off of objects. So the answer to the working of a lens is how it effects light that passes through it.
Lenses are special pieces of glass or plastic that are curved on one or both sizes.
Depending on which way the lens is curved, light is spread out or squished together. A magnifying lens spreads out the light that comes through it over a larger area. This makes the object appear bigger. However when you spread out a certain amount of light over a large area, it makes the object a little fainter. When you use a small handheld lens to look close at a something like a bug you can't tell the difference.