Remove objects when finished. Have students trade trays with one another. Ask them to examine the fossils and draw three conclusions about the animal that made the impression. Allow time for them to share their findings. Explore the Functions of Teeth Teeth hold important clues about what an animal ate and even how it may have behaved.
Procedure Have students work in small groups.
Distribute materials to each group. Display the staple remover. Tell students it represents the sharp teeth of a meat eater. Using the cotton balls, model how a meat eater might rip apart meat. Point out the rocks and explain that they represent the flat, grinding teeth of a plant eater.