Module 3 • Ecology: Dynamic Oceans
Student Page 3-5a
True Colors
Why is the coloration of fish so remarkably consistent the deeper you go in water? In this experiment,
you’ll play with colors and filters in order to simulate the ocean environment. At the end of the
student page is a discussion of the physics at work!
Materials
red, green, and blue transparency paper, small pieces of each
scotch tape
hole punch
3x5 index card
black construction paper
white construction paper
red, green, and blue markers
“Fish Tessellation” sheet (attached)
Procedure:
Part I. Preparing the Filter
1. Using the hole punch, punch three holes along the top of
the index card. Each hole should be at least half an inch
from the top edge of the card and half an inch from the
other holes.
2. Cut a piece of red transparency paper just large enough
to fit over one of the holes. Use scotch tape to tape it in
place. Repeat with green and blue transparency paper.
Part II. Making the Drawing
1. Use your blue felt marker to completely color in one
row of fish on the “Fish Tessellation” sheet.
2. Color the second row of fish red and the third row of
fish green.
3. Carefully cut out the group of nine fish.