Student use a simulation activity to discover that plants that look alike can have different types of roots, that plants with different types of roots can thrive in soils that have different amounts of moisture, and that plants can adapt their root type to their environment over time. A Teacher's Guide link can be found near the the download button. The guide includes lesson plans, answers to the questions in the activity, and detailed instructions on using the features of the simulation. This is activity 5 of a 10-part series of evolution readiness education resources by The Concord Consortium.