Instruct students to measure a rectangular hole with a width of approximately 5 mm on the bottom side of the cardboard box. Have them draw the rectangle with their colored pencils.

Tell students to use scissors to cut a small rectangular hole in the bottom side of the cardboard box.

Instruct students to tape the white sheet of paper to the opposite side of the hole on the inside of the box.

Have students place the black sheet of paper flat on the bottom inside of the box and place the prism on top of the paper.

Turn off all the lights in the room. The darker it is, the better the display of the color spectrum.

Instruct students to turn on the flashlight and shine it through the rectangular hole in the cardboard box. This will display the color spectrum on the white paper in the box.

Have students trace the color spectrum displayed on the white paper on the inside of the box with their colored pencils. The colors should be the order of red, orange, yellow, green, blue, indigo and violet.