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Easy Science Activities for Kids

Color Filters

Filters let through light of their own color.
Filters let through light of their own color.
©2007, Publications International, Ltd.

Experiment with color filters and you'll find that they let through light the same color as themselves. You'll see colors differently when you're done with this easy science activity for kids!

What You'll Need:

  • Cardboard (9x12 inches)
  • Scissors
  • Ruler
  • Cellophane (8x10 inches) in red, blue, green, yellow, and orange
  • Tape
  • Markers
  • White paper

Step 1: Cut the centers out of five pieces of 9x12-inch cardboard, leaving a frame that is 1-1/2 inches wide all around.


Step 2: Use tape to securely fasten one sheet of colored cellophane to each cardboard frame. You have created 5 color filters.

Step 3: Look through one of the filters. What does it do to the colors of objects in the room?

Step 4: Try another.

Step 5: Look through two filters at a time. What do you see?

Step 6: Draw simple pictures of shapes on several pieces of white paper, using only one color of marker for each piece of paper.

Step 7: View each picture through a filter that is the same color as the picture. What do you see?

Step 8: Look at the pictures through filters of different colors.

Step 9: Continue to experiment with your filters.

On the next page, find out how you can easily measure the volume of different objects with a water scale made from a bowl of water.

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