Curated OER
Rocking Rock Review
The three types of rocks are the focus of this earth science PowerPoint. Young scientists can review the composition of these types of rocks and see the ways they are formed. For example, sedimentary rocks are formed when tiny grains of...
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
Binary Compounds
Binary compounds are explained with the periodic table, atomic charges, and examples. Viewers are taught to name binary compounds and then are presented with a chart of cations and ions. Finally, they see a few photos of forms of silicon...
Scientific American
Scientific American Slideshow: A Grain of Sand: Nature's Secret Wonder
Get an up-close microscopic view of grains of sand from various locations around the world in this slideshow from Scientific American.