This easy to read, one page passage about soil covers: Why soil is so important - it provides home for plants and organisms, filters water, keeps atmospheric gasses balanced, and cycles nutrientsThe layers of soil (horizons) - humus, topsoil, subsoil, parent material, and bedrockHow soil forms and which factors affect soil (like topography, climate, animal activity, etc.)The passage comes with 10 multiple choice comprehension questions, an answer key, and 2 self-scoring digital versions - EASEL