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| Learning Objectives/Lesson Goals | Students will understand that -
- white light is made up of many different colors
- when light hits an object, it is absorbed, reflected, or transmitted
- objects are seen by the eye as a particular color because all the other colors are absorbed by the object. (ie: Red objects are seen as red because the red wavelengths of light are reflected into the eye and all other wavelengths are absorbed).
- many animals in the deep ocean are colored red because there is no red light in the deep ocean and they can be camouflaged from their predators.
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| WHERE | Classroom |
| WHO | Classroom Volunteers |
| MATERIALS |
- Jar
- Blue food dye
- Colored plastic (recycled materials like bottle tops and plastic containers)
- White paper
- Black paper
- Colored pens/pencils
- Skewers
- Scissors
- Water
- blue cellophane
- Glasses template (template from joyincrafting.com)
- Sticky tape/glue
- Various colored pictures of deep sea organisms (prep)
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| ACTIVITIES |
- Fill a jar or glass with water and add blue food coloring
- Place the jar on a black piece of paper
- Cut out a fish from colored plastic (red, blue yellow, orange, purple, and green)
- Using a pen, pierce a whole in each fish and place each fish on the end of a skewer.
- Place the fish underwater and compare the visibility of each color. Does the color of the fish change with the depth of the water it is submerged in?
- Place all of the fish under the water. Try and identify which fish is which color. Which color is the most difficult to identify?
Viewing Organisms Through Blue Filters:
- Print out the glasses template onto thin cardboard.
- Cut out the template and attach the arms using glue or sticky tape
- Attach at least 4 layers of blue cellophane to the eye pieces of the glasses.
- View the images of the deep sea organisms through the blue glasses. Which organisms are the easiest and which are the most difficult to see?
Extension Activity:
- Design organisms and draw them in a deep ocean scene with colored pens or pencils. You could even use colored papers, cardboard, or foil to create mosaic art work.
- Design an animal that would be well camouflaged and hard for predators to spot.
- Challenge others to find the organisms in the deep ocean scene while they are wearing the blue glasses.
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