SCI210 Week 3 Disc Task Lesson
What are dead zones?
Task 3 Dead Zones
What are dead zones? How are they formed? And what effect do they have on aquatic
environments? How can dead zones affect humans? What can humans to about the issue?
Then read: Dissolved Oxygen for Fish Production.
Investigate: What is a Dead Zone?
Go to a pet or fish store and make observations about the environment of the tanks in which the
fish are located. Make a concept map that shows the causal relationship between the oxygen cycle
and dead zones.
Submit your completed concept map.
If you need some help getting started, here are websites that allow you to create a concept map for
Answer preview what are dead zones?