design controlled experiment

Name ______________________ Date______ Period_____

Let’s Develop a Controlled Experiment

Directions: Using your knowledge of the Scientific Method, complete the following situations.

1. Define hypothesis?


2. Define experimental variable?


3. Why is it important for an experiment to contain a control?


4. Develop a controlled experiment to back up the following hypothesis:

The temperature of a lake has an effect on a fish’s ability to produce viable offspring.

a). List the equipment needed to carry on this experiment.

b). List the steps of the controlled experiment so that any one can follow.


c). What is the experimental variable?


d). What are the control(s) of the experiment?