Light, Lasers, and Optics Educational Lessons

classroom experiment using laser to estimate sugar content of liquid

Estimate the sugar content of an unknown liquid

Refraction is the property of light that causes it to change speed and bend as it passes from one medium to another. The degree to which the light bends or...

Estimate the sugar content of an unknown liquid

Refraction is the property of light that causes it to change speed and bend as it passes from one medium to another. The degree to which the light bends or...

Additive Color Mixing Lesson Download

Additive Color Mixing Lesson Download

What’s the difference between additive and subtractive color mixing? Why does green and red paint make black, but green and red light makes yellow? Is white light really made up...

Additive Color Mixing Lesson Download

What’s the difference between additive and subtractive color mixing? Why does green and red paint make black, but green and red light makes yellow? Is white light really made up...