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Across 2. made up of fallen leaves, bark and wood 3. the finest particles of rock that are part of soil composition 4. horizontal layers of soil 7. soil layer made up mostly of sand, silt, and clay 9. the arrangement of soil layers 10. the bottom layer of soil composed of entirely weathered rock 12. soil particles ranging in size from .05 - 2 mm in diameter 13. fine-grained sediment

Down 1. map that uses contour lines, symbols and color to show changes in elevation 3. loose covering of weathered rock and decayed organic matter on Earth's bedrock 5. soil layer made from erosion of O and A horizons, much of the water used by trees is stored here 6. the change in elevation of the crust 8. the top layer of soil that is soft, loosely packed and contains many nutrients needed for plant growth 11. organic material that is part of the composition of soil