Dolphins vary greatly in size. A model is anything that is not real but is a representation of an actual thing. Coastal dolphins range in size from 2.5 meters to 2.7 meters. Coastal dolphins are smaller than oceanic dolphins. 1. Work with your group to create a life-sized dolphin model of an adult coastal dolphin. 2. Take a photo of your model. 3. Lay next to your models Have a group member take a of you next to the model. 4. Upload your photos . 5. Use the to record a description of the size of coastal dolohins. 6. Click the green to save.