Next Generation Science Standards (NGSS) Alignment
Disciplinary Core Idea/Sub-Idea:
ESS2. Earth's Systems
ESS2.C. The Roles of Water in Earth's Surface Processes
ESS3. Earth and Human Activity
ESS3.C. Human Impacts on Earth Systems
5.ESS2-2. Describe and graph the amounts of salt water and fresh water in various reservoirs to provide evidence about the distribution of water on Earth.
5. ESS3-1. Obtain and combine information about the ways individual communities use science ideas to protect the Earth's resources and environment.
Global Water Distribution
Extension 1 Instructional Focus
The Gravity Recovery and Climate Experiment (GRACE) satellites study gravity variations on land masses to provide the most detailed picture available of vital fresh water reserves hidden beneath Earth’s surface. The International Space Station’s Environmental Control and Life Support System (ECLSS), a water purification component developed for astronauts working in space, is now used to supply clean drinking water to remote and impoverished communities across the globe.