Is the ocean blue at all depths? Nope! Explore the science behind the light spectrum in deep, dark waters. The lesson recommends watching The Blue Planet: Open Ocean—The Deep, but it's not integral, or you can substitute another clip. Use the attached PowerPoint explain light penetration, bioluminescence, the photic zone, and light wavelength. Then, explore these new concepts using blue cellophane and a darkened classroom. As an assessment, scientists create a hypothetical deep-water animal and explain its adaptations. 

Additional Tags

science

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Instructional Ideas

• In the PowerPoint, replace the instructor's face with your own or a student's to get some laughs and draw attention

Pros

• Won't take much to put this lesson together, and students will remember the concepts from the hands-on application

Cons

• None