• The types of light (the electromagnetic spectrum)
• How colors mix
• The concept of "polarized" light and various applications

Directions: Check out the links within each titled section, then answer the questions. More importantly, understand the answers to each question. (Let me know if there are any links that do not work.)

• Electromagnetic Spectrum (NASA)
• Wavelengths and the EMS
• Spectral Colors
• Characterizing Color
• Memorize This!
• A Review on Light (Ignore the electron orbital stuff.)

1. Draw a chart that lists the main types of electromagnetic radiation in order of longest wavelength to shortest, and also include the direction of lowest energy to highest.
2. Which types of EMR tend to reach the Earth's surface? What happens to the other types?.
3. Explain why is it impossible to view atoms using visible light.
4. List, on your chart, or separately, the approximate wavelenths of each type of light, as well as the wavelengths of each color within the visible spectrum.
5. What is a "spectral color? Are there other colors? Explain.
6. Define "hue", "saturation" and "brightness". Explain their connection.
7. What is a handy way to remember the order of the types of EMR in order of longest wavelength to shortest?
   

• Color Mixing
• Color Box Mixing
• Additive Colors
• Light and Colors
• Color Perception
• The World of Color (Move the colored circles around! And drag the filter over Mickey Mouse!!)

1. What are the three primary colors of light, and what colors do you get when you mix them in pairs?
2. Where does brown light come from?
3. Describe the results of the combining of the colored filters magenta, cyan and yellow (in pairs and all three).
4. Explain why a red object looks black through a blue filter.
   

• Behavior of Light
• Polarized Sun Glasses
• Polarization (Olympus)
• How Stuff Works, LCD's

1. Define unpolarized and polarized light. Diagrams are always nice.
2. How does a polarized filter work?
3. How does light that is reflected, relate to the polarization of light? Be specific.
4. Explain how polarized sun glasses work.
5. How can you tell if your sun glasses are polarized?
6. How do LCD's work? (Also, what does LCD stand for?)

Refer to the objectives at the top of this document and make sure you really do have a good understanding of them.