1. Color
Mrs. Gergel

2. The Color of Objects
The color of a flower depends on how it reflects light.
You see an object as the color of the light it reflects.

3. Objects in White Light
Flowers and other objects reflect different colors of light.
When white light strikes the petals of a lily, the petals reflect mostly orange wavelengths. You see orange petals because the orange wavelengths bounce off them and enter your eyes.
The stem and leafs appear green. They reflect mostly green wavelengths and absorb the other colors.

4. Objects in White Light Continued…
Black and white objects either reflect all light waves or absorb all light waves.
When white light strikes a skunk’s stripe, all of the colors are reflected. The colors combine, so you see white.
When white light strikes the black parts of the skunk, all the light is absorbed and none is reflected back. Your eyes see black.

5. Objects in White Light Continued…
Colored and red objects can appear to be black if there is no light to reflect off them.
If no light is entering a room, you will not see any color. If there is a little light, some color may appear.

6. Objects in Colored Light
Objects can look as if they are different colors depending on the color of light shining on them.

7. Objects Seen Through Filters
Some transparent materials only allow certain colors to pass through them. They reflect or absorb the other colors. These transparent materials are called filters.
Spotlights in theater stages
Photographic slides
Photographic filters

8. Combining Colors
The three colors that can be used to create any other color are called primary colors.
They are: green, red, blue
Any two primary colors mixed together create secondary colors
These are: yellow, cyan, magenta

9. Mixing Colors of Light
When combined in equal amounts, the primary colors produce white light.
If they are combined in any other variation of amount, they produce any other color.
When two colors of light are combined and form white light, they are called complimentary colors.
Some examples are:
Yellow and blue
Cyan and red
Magenta and green

10. Mixing Colors to make Television
TV screens only produce three colors of light. The screen is made up of little dots of each primary color. The brightness of each color determines what the picture on the screen looks like.

11. Mixing Pigments
Pigments are substances that are used to color other materials. They have some different properties than the colors of light.

12. Mixing Pigments Continued…
As pigments are added together, fewer colors of light are reflected and more are absorbed.
The primary colors of pigments are cyan, yellow, and magenta
Secondary colors are green, orange, and violet.
Mixing all three of the primary colors of pigments together will create black.
Mixing only two primary pigments produce secondary colors.