Chimacum Middle School 6th grade Science Core Concept Topic/EALR 1 Component/ Benchmark EALR 1 "Concepts and Principles" EALR 2 and 3 Suggested Activities and Resources Assessments Earth Properties Nature and Properties of Earth materials/ 1.1 BM#2 " Classify rocks and soils into groups based on their chemical and physical properties; describe the processes by which rocks and soils are formed." Know and understand that rocks are classified by the ways they are formed i.e. igneous, sedimentary and metamorphic. Describe and explain how the rock cycle relates to the earth Understand that minerals exist in various quantities and that discovery, recovery, depletion and recycling are important issues. Understand that sediments eventually become buried and cement together with dissolved minerals and become rock again. Understand that rocks show evidence of pressure and temperature Know that soils are a combination of weathered rocks, decomposed living things, water and air. Soil layers often show differing composition and origin Understand that weathered rock comprises the basic soil composition. Understand that texture, fertility and erosion resistanc