Shark Experiment #2 Parts of an Experiment

What was the independent variable in the second experiment?

• The amount of blood released over the course of an hour

• The type of blood used

• The number of sharks in the ocean

• The number of sharks that came within a 3 meter radius of the surfboard

What was the dependent variable in the second experiment?

• The amount of blood released over the course of an hour

• The type of blood used

• The number of sharks that came within a 3 meter radius of the surfboard

• How long the experiment lasted

Select things that were kept constant during the second experiment:

• The amount of blood released over the course of an hour

• The type of blood used

• The number of sharks that came within a 3 meter radius of the surfboard

• How long the experiment lasted

Based on the results of the second experiment, what conclusion can you make?

• Sharks were more attracted to the slow pumping blood.

• Sharks were more attracted to the fast pumping blood.

• Sharks were not attracted to the slow or fast pumping blood.

How do you feel about your ability to identify the parts of an experiment?

• I don't get this at all.

• I'm beginning to get the hang of it.

• I'm good. I understand this.