1. Properties of light, the human eye,
color & vision

2. Sources of Light Sunlight- light radiates from sun.
The nuclear _______ of hydrogen atoms creates the light and heat for us on the earth.
Radiate means to spread out from the ________.
We call all light _______ energy.
fusion
center
radiant

3. Sources of Light Electrical Light Bulb
Incandescent light – this type of light bulb is created from a _______ tungsten filament.
Light Emitting diode –is currently the most popular type of light bulb and is made with a _______________. We commonly refer to these as LED lights.
glowing
semi-conductor

4. How Light Passes Through Materials
TRANSPARENT: most light is transmitted (passes through), objects can be seen clearly
EX. air, water, clear glass
TRANSLUCENT: transmits some light, but objects cannot be seen clearly
EX. lampshades, frosted windows, curtains
OPAQUE: does not allow any light to pass through; object absorbs all of the light
EX. wood, rock, metal
opaque
translucent
transparent

5. How Light Passes Through Materials.
MATERIAL
DESCRIPTION
3 EXAMPLES
TRANSPARENT
TRANSLUCENT
OPAQUE

6. VISBIBLE LIGHT SPECTRUM
VISIBLE LIGHT IS MADE UP OF 7 DIFFERENTWAVELENGTHS:
RED
ORANGE
YELLOW
GREEN
BLUE
INDIGO
VIOLET
Now take time to play around with prisms. Tilt chin downwards. Slowly tilt prism up until you see the “rainbow”
***Memory technique: ROY G BIV

7. Website about colored lights
Play around with colored card stock and colored light bulbs if they come in by Wednesday. Go to
Website about colored lights