Requires these items from the kit: a motor, wires, battery band, disks and light wands.
Students will also need a battery and crayons or markers.
What are the primary colors of light?
How do you create the secondary colors?
How can mixing red with green possibly make yellow?
Mix light by spinning color wheels. Combine beams of color from LEDs.
to the image on the next slide.
LIGHT detectors.
into a rainbow of colors.
you CAN put the colors of the rainbow
back together again. Let's give it a try!
Find your light kit and a clean surface.
Band
battery
leads
around the battery.
clips to the battery.
the shaft spinning?
one alligator lead.
to the battery, as shown.
Connect the motor. Watch the disk spin.
in the kit using markers
or crayons.
Color Wheel
colors in the rainbow.
will appear white as you spin it with the motor.
If not, the disk may appear tan or gray or even pink.
to make all the other colors.
by spinning them together with a motor.
on television screens,
computer monitors,
tablets and cell phones
are made
by ADDING together different amounts of these
primary colors of light!
than mixing paints or food coloring.
as shown.
green+blue=cyan
red+ blue=magenta
cyan and
magenta?
if you spin a disk colored
red, green and blue?
of this color wheel where
red, green and blue overlap?
actually fooled your brain
into ADDING the colors together.
Pigment colors are not as exact as light colors.
Let's mix light colors using LED lights.
The first three settings are: red, green and blue.
ONE LED IS ON AT A TIME.
make yellow?
make magenta?
make cyan?
on the previous slide.
at a white surface.
You can see the LED colors that are ON for each color in the tube.
to get PURE white?
