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# Science Projects for Kids: Spectrum of Colors

Not Just Black and White
Create the spectrum of colors using black and white paper.
©2007 Publications International, Ltd.

Not Just Black and White is a science project that teaches kids about color and light. Different colors will appear when you and your kids view spinning black-and-white circles.

### What You'll Need:

• Pencil
• Ruler
• Scissors
• White paper
• Black paper
• Glue
• Black marker
• Tape
• Knitting needle
• Paper plate

Learn About Not Just Black and White:Step 1: Draw and cut out 3 circles of white paper that are each 5-1/2 inches in diameter. Put a small hole in the center of each circle.

Step 2: Draw and cut out a circle of black paper that is 5-1/2 inches in diameter. Cut the black circle in half. Cut 1 of the halves in half.

Step 3: Use these materials to make several different disks. Glue a black half-circle onto a white circle so that the disk is 1/2 black and 1/2 white. Glue a black quarter-circle onto a white circle so that the disk is 1/4 black and 3/4 white.

Step 4: Using a black marker, divide 1 white disk into 8 pie-wedge shapes. Color some of the pie wedges black, leaving others white.

Step 5: Wrap some tape around the middle of a knitting needle. Put the knitting needle through the middle of a 6-inch paper plate, and push the plate down to rest on the tape.

Step 6: Spin the plate. Be sure it spins smoothly and doesn't wobble. Use this as your spinner. Poke the knitting needle through the hole in the center of 1 disk, and let the disk rest on the paper plate.

Step 7: Spin the plate, and look at the disk as it spins. What colors do you see? Do you see different colors when the disk is spinning quickly or slowly? Spin the other disks to see what colors they produce.

Colors at a Distance is a science project that teaches kids about visual perception. Learn about Colors at a Distance on the next page of science projects for kids: spectrum of colors.