4. Wavelength

6. Perceiving Light

7. Rd Rods Cones

8. 2) Why do objects appear in different colors and in different shades of the same color? 3) Why are most emergency vehicles and school buses painted yellowish or greenish colors? 1) How does light reach our eyes? Does light travel in a straight line?

9. Why do we see blue? RedOrangeYellowGreenBlueViolet Reflected White Light Absorbed Transmitted

10. Reflection

11. Refraction

12. Red Orange Yellow Green Blue Violet “ROY G BIV” Spectroscope - Uses diffraction grating

13. Definitions Spectroscope – a device that produces a color spectrum Spectrometer – an instrument that measures the intensity of light

14. Lunar Planetary Institute ON

19. Calculations: Standard Voltage

21. Graph

22. Results Collect Data Calculate % Reflectance Graph Data

24. Collect Data For Light & Dark Blue Felt

26. Human Vision

27. Primary Colors Complementary Colors

28. Can You Explain? What is happening to the light that strikes each of these jars?

29. Let’s Check Our Answers Transmission Absorption Reflection (Scattering) Color Selective Absorption, Transmission, and Reflection

30. Double Reflection Oil Film on Water

31. Double Reflection

32. Color Magic Red, Blue, and Green Filters

33. Perfect Filters Red removes green and blue Green removes red and blue Blue removes red and ½ green