1. You... Light up..... my life https://www.youtube.com/watch?v=50B8ErvdElI

2. To understand the properties of light... 1. It is a form of energy!...(I can prove it!) 2. How it is produced 3. How it travels 4. How it interacts with objects

3. Light...is a form of energy because it has the ability to do work Ex: When light energy from the sun hits a black shirt it begin to heat the shirt because light energy is turned into thermal energy Energy is neither created or destroyed...it simply changes forms

4. Review ****** Producers turn light energy into chemical energy which consumers eat and turn into sound energy...thermal energy and kinetic energy Sun Plants herbivores carnivores omnivores

5. How is light made...ON THE MOVE...Let me explain!!! Nucleus---center of atom Neutrons---carry no charge and found in nucleus Protons---carry a positive charge and found in nucleus electrons---carry a negative charge and found in outside orbits

12. Electrons...jump orbits and when they do they release energy which we see as a burst of light...Photons

13. Are all objects visible? Travels in straight line And...its fast...186,000 miles per second Sun light leaving our star reaches us in 8 minutes ONLY.... if reflection or refraction occurs

14. Another REVIEW !!!!

15. To understand how light interacts with objects it encounters

16. Reflection.....

17. So.... why do I see colors?

18. Fact #1 we see white light when all the colors of the spectrum are reflected back into our eyes

19. You see colors...when white light hits an object and all the colors are absorbed except for the color which you see---that color is reflected by the object and comes back to your eye. So red objects reflect red --- orange objects reflect orange --- green reflect green.... etc white light red green all other colors are absorbed Fact # 2

20. Fact #3 white light All the colors are absorbed and nothing is reflected back to the eye

21. Reflection involves a change in direction of waves when they bounce off a barrier. Refraction of waves involves a change in the direction of waves as they pass from one medium to another. Refraction, or the bending of the path of the waves, is accompanied by a change in speed and wavelength of the waves. ReflectionReflection is when light bounces off an object. If the surface is smooth and shiny, like glass, water or polished metal, the light will reflect at the same angle as it hit the surface.metal

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28. Refraction causes the rainbow effect