About This Lesson
Earth provides the air we breathe, the water we drink, and other conditions that support life. Earth is a natural life support system. On the International Space Station, the Environmental Control and Life Support System provides these needs. The functions of an ECLSS include atmosphere revitalization; atmosphere control and supply; temperature and humidity control; water recovery and management; waste management; and fire detection and suppression. The activities in this guide focus on water recovery and management.