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Science - Kindergarten
Standard 4 Objective 2
1 class periods of 45 minutes each
Students use diffraction glasses to explore the colors found in the visible spectrum of light. They mix the primary colors using color paddles and liquids to make orange, green, and purple. Finally, students observe the dots used to make colored pictures in magazines.
Visible light separates into the spectrum red, orange, yellow, green, blue, indigo and violet. These colors can be memorized in order using the saying Roy G. Biv. Diffraction or rainbow glasses separate visible light. Water droplets in the air can also separate visible light creating rainbows.
Red, yellow and blue are the primary colors. The secondary colors are red and yellow to make orange, yellow and blue to make green, and blue and red to make purple. Colored magazine pictures are made using separately colored dots placed very closely next to each other. When looking at pictures with our eyes alone, we see one solid color but when pictures are looked at with magnifying lenses the individual dots of colors can be distinguished.
Pre-lab discussion:Ask students about the 5 senses and explain that today they are studying their sense of sight. Show students the rainbow picture and recite the color names in order. Show students a picture from a magazine and then using the baby picture of the dots explain how magazine pictures are formed. Use the color paddles to demonstrate the primary colors and the mixed secondary colors.
Rio Tinto Hands-on Science Curriculum Team