This interactive activity goes along great with any animal unit for your upper elementary school students. Use this product to teach your students about the characteristics vertebrates and invertebrates as well as the six different animal classifications: birds, fish, amphibians, reptiles, and mammals. Included in this resource students will: Complete a reading on Animal Classification [vertebrates vs invertebrates, and groups of vertebrates: mammals, fish, reptiles, amphibians, birds]Answer 10