ESS2: Earth’s Systems

Activity or Mini-Lesson:

Oxygen Minimum Zone Classroom Warm Up

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).