Curated OER
Weathering
Second graders explore weathering and how the water cycle plays a part in weathering. In this weathering instructional activity, 2nd graders put gravel and sugar cubes in a jar and shake, simulating weathering. Students use the...
Curated OER
The Nitrogen Cycle
Young scholars design and create a compost pile in order to study the Nitrogen Cycle. They then use the scientific method to determine if plants grow better when they add organic matter from their compost pile to the plant's soil.