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  • National Museum of the U.S. Navy

Gray Lady Down

Lesson Plan

OBJECTIVE: Students discover the effects of pressure on objects and humans at extreme ocean depths, and discuss how that affects submarine travel.



  1. Brainstorm with the class about what it's like to go to sea on a submarine.
    • How would their lives at sea be different? the same?
    • What would be the best part of living underwater? the worst?
    • How long would they want to stay underwater?
    • How do they think air/water pressure would affect them?
  2. Distribute Gray Lady Down activity sheet for students to read.
  3. Discuss the differences between the Thresher and Scorpion tragedies in small groups using the questions at the end of the activity sheet as a guide.
  4. Optional: Rent and watch Gray Lady Down with your class before doing this activity.


MUSEUM LINK: View the bathyscaph Trieste and learn more about Thresher during your visit to The Navy Museum.

Published: Wed Oct 12 11:07:05 EDT 2022