Color Blind Test

Some people can’t tell the difference between colors; they are COLOR BLIND. Our eyes have special cells in them that help us see colors; these cells are called CONES. If some of our cones are damaged, it can be hard to tell the difference between red and green; if other cones are damaged, things that are blue and yellow might look gray.

If a color blind person saw a pile of green crayons with one red crayon on the top, they might think all the crayons were the same color. But if there was an orange crayon on top of the green crayons, a color blind person might be able to see it.

colorful elephant

Q: Why would a color blind person be able to see an orange crayon but not a red crayon? What is the difference between red and orange?

A: Orange is made of both red & yellow; a color blind person could tell that crayon was different because they could see that it was partly yellow.

We’re going to take a test to make sure we can tell the difference between colors.* See if you can observe the numbers and shapes in each picture.

* Don’t be alarmed if this is somewhat difficult; it is normal for young children to experience blue/green confusion.

See what you need for this experiment on the next page.

Color Wheel

Paints aren’t the only art supplies that mix colors to create different colors – crayons, pencils, and markers do too. Different combinations of colors are mixed together to create each shade – even black! In our next experiment, we’re going to separate the colors in markers and find out which combinations make up each color.

color wheel

Materials

Procedure

  • Draw spots on the coffee filter with the markers (Don’t draw them too close together – keep plenty of space between each color)
  • Add a few drops of water to each color
  • Observe the way the spots expand and colors separate
  • Discuss the combinations of colors involved
  • Allow the coffee filter to dry for best results

Color Activity: Mix a Rainbow

The rainbow has all the colors that we see around us, and color is everywhere: in nature, in our homes, etc. Get children excited to learn about color with this fun, crafty activity.

rainbow

Materials

Procedure
Instruct the children to mix their paint the same way we added colors together in the previous activity:

o Squirt yellow & red into one cup & stir to make orange.
o Squirt red & blue into another cup & stir to make purple.
o Squirt yellow & blue into a 3rd cup & stir to make green.

Add the primary colors to each of the other 3 cups, then paint a picture using all the colors of the rainbow.

Image source: https://flic.kr/p/eB5GV3

Color Math

Did you know that we could make every single color that exists by mixing just three colors together? We call these three colors the PRIMARY COLORS. Teach kids to mix colors to create different colors. This is a fascinating subject for preschoolers :)

color mixing

INTERACTIVE DEMONSTRATION

Q: How many colors do you think exist?
A: Millions!!

Q: What are the colors in a rainbow?
A: Red, orange, yellow, blue, green, & purple

Q: Do you know what the primary colors are?
A: Red, blue, & yellow

We can make all the colors of the rainbow just by mixing these three colors together!

Materials
Dry Erase Board

Dry Erase Markers: (1) red, (1) blue), (1) yellow
(to keep your markers clean, start with the lighter color for each “equation”)

Procedure

Set up three “color equations” on the dry erase board with circles of color.

Ask the kids to predict each outcome before combining the colors!

Yellow + Red = Orange
Red + Blue = Purple
Yellow + Blue = Green

Great Books About Color

Color Lesson – Group Introduction

Does grass look green when it’s dark outside? Can you tell what color your sheets are when the lights are out? No! We need light in order to see colors. We call normal, everyday light from the sun, ceiling lights, lamps and flashlights “white light”. White light is made up of all the colors of the rainbow. If we shine white light through a special instrument called a PRISM, the prism will separate white light into all the different colors of the rainbow.

colored pencils

INTERACTIVE DEMONSTRATION: MAKING A RAINBOW

Materials

Prism Set
Flashlight

Procedure
Demonstrate how the prism works by allowing the children to shine a flashlight into it and identify the different colors they see. Results may be more effective with the light off.

Q: What material acts like a prism in nature? Hint: The sun has to be shining at the same time this material is falling from the sky.
A: Water

Q: How is water like a prism?
A: When sunlight shines through raindrops, white light is separated into the SPECTRUM.

Q: What happens when water acts like a prism?
A: We get a rainbow!

When light shines on an object, the object ABSORBS some of the light (like a towel absorbs water) and REFLECTS the rest (like a mirror). The color of that object is the color of light being reflected back into our eyes.

Imagine there is a red rose growing on a rosebush. If the rosebush is outside, what kind of light is shining on it? Sunlight! And what kind of light makes up sunlight? White light! And what colors make up white light? All of them! So when white light hits the rose, every single color in the white light is absorbed into the rose except for one; red light is reflected back into our eyes.




Q: When white light hits the LEAVES on the rose bush, what color is reflected back into our eyes?
A: Green

((Point out children’s shirts and various brightly colored objects in the room, asking the same question; do not choose black or white!!))

Q: So if all the colors of light mixed together make up white light, what color do you think we see if ALL of them are reflected back?
A: White

Q: What color do you think we see if ALL the colors are absorbed and NONE of them are reflected back?
Hint: What’s the opposite of white?
A: Black

Next, let’s talk about mixing colors together!

Image source: https://flic.kr/p/5YGWQH