design an investigation to compare how different types of soil affect plant growth. This includes organizing data in tables and constructing simple graphs.
- Interrelationships in Earth/Space Systems
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.