Light is a form of electromagnetic energy that travels in waves at a speed of approximately 186,000 miles per second. It can be reflected, refracted, or absorbed when it interacts with different materials and surfaces. Visible light is made up of different wavelengths that correspond to the colors of the rainbow, with red having the longest wavelength and violet the shortest. Lenses and prisms can bend light through refraction, causing the different wavelengths to separate, which is how rainbows and spectrums are formed.

1. Light

3. How fast is 186,000 miles/second?

6. Look at how the surface affects these water reflections.

10. Which is convex? Which is concave?

20. When the light ray passes through a prism, the rays bend at different angles because their wave lengths are different

28. Electromagnetic Spectrum