Use the diagrams to label only those parts that are clearly visible to you. Compare your organism with the examples provided. Observe some of the behavior and become familiar with what you consider normal. Use care so as to not kill the organism with too much heat from the microscope light. After class introduction, students meet in lab groups to discuss the kind of experiment they wish to do.
Students record experimental ideas.
Decide how long you wish to leave the organisms in the freezer. Decide how much water to use when you expose the animal to the cold. Record temperature at which experiments are conducted as well as conditions and locations. Decide if you can use the winter outdoor environment where you live as a source of cold Decide what variables may influence the results of the experiment if you don't control them. Decide on what kind of data you want to record.