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What will happen to the goldfish?

We should now understand that aquatic organisms need a certain amount of dissolved oxygen in order to survive.  The following activity will allow you to make a prediction about the effect of different oxygen levels on fish, to gather data, and to arrive at some scientific conclusion.  This process is the basis for the scientific method.  The data that will be collected and analyzed includes dissolved oxygen levels and fish movements.   

Thermometer and Bubbles

To view the procedure of the activity, click here.  

To access the student journal activity sheets for this module, click here.

To view the teacher's instructions for the activity, click here.

*For more activities and lesson plans in all subjects visit our teacher requested resources, click here.

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