Light+Rays+and+Lenses

** Content Standard 5 ** :Contrast ways in which light rays are bent by concave and convex lenses. ** Text ** : F64-F71
 * Light and Lenses **

**Study Guide**
 * 1) Create a Venn Diagram comparing and contrasting concave and convex lenses.
 * 2) Explain how light rays travel through the lens in the human eye.
 * 3) Create an illustration identifying the shape of the lens and direction that light rays are bent for a convex lens.
 * 4) Create an illustration identifying the shape of the lens and direction that light rays are bent for a concave lens.
 * 5) Determine how concave lenses improve the vision of people who are nearsighted.
 * 6) When light travels through a concave lens how will light rays travel?

Let's Explore Light and Lenses
[|Bill Nye on Light and Color Part 1] [|Part 2] [|Part 3] [|How We See] [|Sight Quiz] [|Get a Bright Idea] [|Illusions] [|Optical Illusions]

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 * Find Something interesting? Let's add it! **

Concave & Convex Lenses Rap media type="file" key="Austin's Lense Rap YO!!!.mp3" width="240" height="20" This song is all about lenses, A use for them is one of your senses //(sight).// A type of those lenses is concave, Don’t worry they’re not living and they won’t misbehave. Concave lenses are sort of curved inward, Or, at least, so I’ve heard. It’s shaped like a much diverging circle, No, this song is not a miracle. Another type of lens, is convex, The concept of it isn’t //that// complex. The convex is an oval with flat or pointy ends, And this is the end of my song my friends. I’ll see you later when my next song extends.

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We had the opportunity to teach Astronomy students at Spain Park High School about Lenses. Here is the Wallwisher we used for our lesson:

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