Basic Skills and Principles: Experimental Analysis

At this point, refer to the lab printout sheet and complete the section for Experiment 1.

Experiment 2:
Procedures

A hypothesis that has been tested only once usually remains a hypothesis until it has been tested many times.  If the tests provide convincing evidence that the hypothesis is correct, than it is considered to be true until (and if) convincing contradictory evidence emerges.  If the tests provide convincing evidence that the hypothesis is not correct, it is either dropped from consideration or changed and retested.  In other words, a reasonable hypothesis is usually tested many times.

For the second part of this laboratory, you are being asked to use the Fish Farm program to choose and test a second prediction from the original hypothesis.  Remember, the hypothesis is: 

Hypothesis:  Environmental conditions affect fish growth.

There are three other factors you can choose to test using this program – oxygen concentration, the amount of food, and the proportion of the food that is protein.  Pick one of these, make a prediction about it, and design an experiment. Using the Fish Farm program, run your experiment.  Remember that you will have to use tank experiments and set each of the elements in the program (temperature, etc) to the desired level.

Refer to the lab printout sheet and complete the section for Experiment 2.