Curated OER
Weathering & Erosion
First educate, and then quiz viewers on the ins and outs of weathering and erosion. At a level appropriate for upper elementary or middle school earth scientists, these slides display animated graphics and photos. The first 22 slides...
Curated OER
Chemistry is Crystal Clear
Students observe crystals and their shapes and formation. In this crystal formation lesson, the teacher prepares crystal gardens for the students to observe, then the class finds examples of crystals in nature and observe a teacher...