Thames & Kosmos Rainbow Gummy Candy Lab handleiding

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Thames & Kosmos

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Handleiding

THE SCIENCE OF COLOR

THE COLOR

DETECTORS

IN YOUR EYE

We have three

different detectors

for color in our

eyes. One type is

best at recognizing

red, another type

recognizes green, and another type is best

at recognizing blue. How is it, then, that

we can see so many different colors and

color gradations? Our brain creates the

colors we see by calculating how strongly

the three different types of detector are

stimulated. Since these detectors require

a certain amount of light in order to

become activated, though, we cannot

perceive any colors at night.

All colors

together

produce

white

GRASS IS GREENER

Why do we perceive the grass

as green, the sky as blue, and

a rose as red? White light is

composed of many colors.

When this light arrives, for

example, at a green tree,

most of the light colors are

“swallowed up” by the leaves,

and only the green rays are

reﬂected back. The color of

the rays that are

reﬂected to our

eye is the color

of the object

— in this

case, green.

COLOR MIXING

What happened when you mixed the red and yellow

gummy mix together? How about when you mixed red

and blue? Why does mixing two colors of gummy mix

together create a new color?

Light moves in waves. Our eyes see light waves of

different wavelengths as different colors. We see light

consisting of all wavelengths as white light. When you

mix red, green, and blue light, you see white light.

The gummy mixes are colored with dyes. Dye and

pigments mix differently than light. Each color of dye

absorbs some wavelengths of white light, subtracting

those out of the color that reﬂects into your eye. The

ﬁnal color you see is made of whichever wavelengths

are not absorbed by the dye particles.

GEEK

OUT!

Light mixing

Pigment mixing

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