Curated OER
Soil Erosion
Students examine how erosion is affected by the composition of the soil and the slope of the land. They look at plant roots, rocks and land slope as experimental factors. They complete the associated worksheets before discussing their...
Curated OER
Weathering Agent 007
Students are introduced to the concept of weathering. In groups, they use the internet to research the various types of weathering agents and their effect on different materials. Using photographs, they discuss the role humans play in...
![Erosion in Different Soils [Erosion Races] Lesson Plan](http://content.lessonplanet.com/resources/thumbnails/140405/large/cgrmlwnvbnzlcnqymdezmdmyos01nde3lxfmmzy0dc5qcgc.jpg?1414240121 "Erosion in Different Soils [Erosion Races] Lesson Plan")
Curated OER
Erosion in Different Soils [Erosion Races]
Fourth graders review how erosion can happen by wind, water, and gravity which they studied in previous lesson. They attempt to discover if all soils erode at the same rate. In small groups, 4th graders experiment with three different...