Activity or Mini-Lesson

Oxygen Minimum Zone Classroom Warm Up

Purple octocoral with brittlestars
Ocean Exploration Trust

Classroom Warm-ups: Kick-off any lesson with these one-page, observation-building, problem-solving STEM prompts — whether or not you’re teaching an ocean topic.

This warm-up exercise will help students to understand the characteristics of oxygen minimum zones (OMZs) and the ecology and biology found within. OMZs are locations in the world ocean where oxygen saturation in the water column is at its lowest. These areas typically occur between 200 and 1,000 meters (650 to 3,280 feet). 

Disciplinary Core Ideas

Grade level

Grade level

Time & materials

Time & materials
Scale: one of three
Prep time and materials cost minimal, may require printing.