I created this activity to help my biology students pattern and differentiate the traits of various animals, mainly invertebrates. Students compare and contrast the presence of a backbone in round one, the symmetry of the animal in round two, whether or not the animal possess stinging cells in round three, whether or not the remaining animal contestants undergo metamorphosis in their life cycle in round four and if the two finalists are sessile (attached) or free-swimming in the championship round. The use of the additional two-page animal contestant profile sheet is optional. I scripted it as a supplementary resource offering for middle school students or as an accommodation for high school students. I also included an answer key.
In addition, students have the opportunity to create and fill in their own tournament bracket of invertebrates in a follow up single-page activity. This activity features a blank, miniature bracket for eight starting organisms (invertebrates) and explicit directions for students to follow.
May the games begin!