The focus of this activity is on interpreting geologic history through volcano formation and excavation. Baking soda, vinegar and play dough are used to model fluid lava flows. Various colors of play dough identify different eruption events. Students will: Construct a model of a volcano Produce lava flows Observe, draw, record, and interpret the history and stratigraphy of a volcano produced by other students Make the connection between the life cycle of a volcano and why they see these feature