What things use convex lenses?
You know those microscopes? Well, you probably do. A convex lens
can be found in a microscope. Concave AND convex are both used in
this item. You can also check www.brainpop.com on microscopes
depending on your age (3-5 grades). It sadly cost money. There are
also farsightedness glasses that use convex lenses. And you
might've guessed, nearsightedness glasses use concave. Magnifying
glasses are of convex lens use, too. Then there's also contact
lenses. Magnifying glasses, telescopes, vehicle mirrors and more
mirrors in hospitals and other building use these lenses. Sorry if
this paragraph was too long but I hope this was helpful!