Introduce your students to the wonders of ancient and modern science with the Hero's Fountain! This educational and entertaining kit is connected to two clear 2-liter soda bottles, which cause a fountain to erupt every time the bottles are turned over. Modeled after the 2,000-year-old fountain created by Hero of Alexandria, this modern version comes with an explanation of the science behind its captivating effect. A proven winner on your Science Table, the Hero's Fountain is as amazing as the familiar "tornado in a bottle" and is sure to engage students in the principles of physics and fluid dynamics. Please note that colors may vary, and two 2-liter soda bottles are required for operation.