Students should use their Design an Experiment student sheet to help them design an experiment to look at why the octopods in Moorea stay in their dens for shorter periods of time than those in Hawaii. This sheet provides some examples of what they could come up with.
At the very end of The Octopus Scientist, it is revealed that many questions about octopods were answered and minimal support was found for the scientists’ various hypotheses. This is often the case with scientific research, so more experiments must be conducted to answer these questions. One of these unanswered questions was why do the apparently same species of octopods in Moorea stay in their dens for shorter amounts of time than octopods in Hawaii? Design an experiment to answer this question that includes a hypothesis, independent variables, dependent variables, controls, and various methods used for data collection in a procedure.
If octopods in Moorea behave differently than octopods in Hawaii, then they must be different species. Behavioral differences found in octopods in different locations are caused by differences in available food sources. Behavioral differences found in octopods in different locations are caused by differences in environments. If octopods in Moorea live in dens for shorter amounts of time than octopods in Hawaii, then Hawaii must have better dens than Moorea.
Location of study.
(If researching species’ differences) species of octopus, types of den, octopus diets, environments, octopus responses.
Methods of data collection, type of octopus studied, and time of day spent studying octopods.