In order to demonstrate how plants remove water from the soil and release it to the atmosphere, students compared open- and closed-growing systems using drought-tolerant and higher water requirement plants. Then, students designed a drought-tolerant garden demonstrating what they had learned. Through this experience, students not only learned about evaporation and transpiration in a concrete way, but they also learned about their own local ecosystem and factors affecting it. (Contains 1 figure and 1 online resource.)