Soil – A Third Grade PowerPoint Introduction is a PowerPoint instructional presentation in line with the 3rd Grade SOL’s for the state of Virginia
Interrelationships in Earth/Space Systems
3.7 The student will investigate and understand the major components of soil, its origin, and its importance to plants and animals including humans. Key concepts include
a) soil provides the support and nutrients necessary for plant growth;
b) topsoil is a natural product of subsoil and bedrock;
c) rock, clay, silt, sand, and humus are components of soils; and
d) soil is a natural resource and should be conserved.
This lesson focuses on Soil. Included is The Importance of Soil, Understanding of Soil Layers (Humus, Topsoil, Subsoil, Rock), and Components/Soil Make-Up (Loam, Clay, Silt, Sand). Terminology is included, as well as a printable activity from slide 6 (Identifying soil layers and soil types.) included in a PDF file and modified so it can be printed and issued as desk or homework assignments. The activity can also be a lead-up into a writing assignment as well.