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National Park Service
Erosion
A set of PowerPoint slides supports a lecture or class review of weathering and erosion. Viewers learn the definition of each and examine various photos for evidence. Erosion is further depicted as caused by wind, water, and ice....
Curated OER
Earth's Water Sources
General facts about Earth's water sources, human use, and the water cycle are outlined by this presentation. Slide three has a grammatical error and slide nine refers to the local watershed of the author, so you will need to make a few...
Port Jefferson School District
Water and Climate
Dive into a lesson on the hydrosphere with this Powerpoint presentation. Building on prior knowledge of the water cycle, young scientists learn what happens to water after it falls as precipitation and explore the...