Curated OER
Surface Water and Groundwater
Students examine distribution of water and minerals. For this surface and groundwater lesson, students conduct an experiment with fresh and salt water making hypothesis and drawing conclusions about minerals.
Pennsylvania State University
Earth 101: Distribution of Water on the Earth's Surface
The distribution of water on the Earth's surface is extremely uneven. Only 3% of water on the surface is fresh; the remaining 97% resides in the ocean. Of freshwater, 69% resides in glaciers, 30% underground, and less than 1% is located...