Soil interactive notebook-This resource has various activities to help your students learn about the layers and types of soil. The unit covers the following topics: what is soil, how is soil formed (weathering), why is soil important, layers of soil (horizon O/humus, horizon A/topsoil, horizon B/subsoil, horizon C/regolith, horizon R/bedrock) and types of soil (sand, clay, silt & loam) & burrowing animals. This file includes:17 slides in PowerPoint (NOT EDITABLE)Notebook unit cover1 foldable