Concave & Convex Lenses: Lesson for Kids

An error occurred trying to load this video.

Try refreshing the page, or contact customer support.

Coming up next: Bernoulli's Principle: Lesson for Kids

You're on a roll. Keep up the good work!

Take Quiz Watch Next Lesson
Your next lesson will play in 10 seconds
  • 0:04 What Are Lenses?
  • 0:55 Concave Lenses
  • 1:29 Convex Lenses
  • 2:02 Lesson Summary
Save Save Save

Want to watch this again later?

Log in or sign up to add this lesson to a Custom Course.

Log in or Sign up

Speed Speed

Recommended Lessons and Courses for You

Lesson Transcript
Instructor: Rodney Davis

Rodney has 9 years of elementary teaching experience and a Master of Arts degree in Early Childhood Education.

In this lesson, you'll learn about both concave and convex lenses. We'll explore how these types of lenses bend light to help people see things both near and far more clearly.

What Are Lenses?

Do you wear glasses? Maybe some of your friends or family members wear glasses? If so, then you might already know that a person's eyeglasses are made especially for that person. One person's may help him see objects far away, while another person's glasses may help focus things close up. All eyeglasses have lenses, which are pieces of glass specially shaped to refract, meaning to bend and direct, light rays in ways that help you see more clearly.

Lenses are used in many different ways, not just for eyeglasses. For example, scientists use them to see things very far away, like other planets, as well as zooming in on very tiny things like miniature bacteria. And lenses come in two general shapes: concave or convex. Let's learn what these two words mean.

Concave Lenses

Concave lenses, also called negative lenses, curve inward from the edges toward the center. So, they're thinner at the center than around the edges. To remember this, focus on the last part of the word: cave, as in when something caves in. Once light rays hit the lens, they spread out, creating an image smaller than the actual object but crisper.

This type of lens can help people who are nearsighted, who see objects up close well but have trouble seeing faraway objects. They're also used in telescopes, which help people see things that really far away seem bigger and up close.

To unlock this lesson you must be a Member.
Create your account

Register to view this lesson

Are you a student or a teacher?

Unlock Your Education

See for yourself why 30 million people use

Become a member and start learning now.
Become a Member  Back
What teachers are saying about
Try it risk-free for 30 days

Earning College Credit

Did you know… We have over 200 college courses that prepare you to earn credit by exam that is accepted by over 1,500 colleges and universities. You can test out of the first two years of college and save thousands off your degree. Anyone can earn credit-by-exam regardless of age or education level.

To learn more, visit our Earning Credit Page

Transferring credit to the school of your choice

Not sure what college you want to attend yet? has thousands of articles about every imaginable degree, area of study and career path that can help you find the school that's right for you.

Create an account to start this course today
Try it risk-free for 30 days!
Create an account