Across
- 3. hard and solid with no nutrients
- 4. worms droppings that add nutrients to the soil
- 7. over the years living things help break down rocks and create soil
- 9. provides a place for plants to grow with support and nutrients
- 10. upper soil surface and best for plants
- 11. we should do this with soil by planting trees, grass, and flowers
Down
- 1. important to soil because they crawl through and mix it
- 2. decayed matter in topsoil that adds nutrients
- 5. materials that plants and animals need to live
- 6. made of pieces of broken rock
- 8. contains tiny particles of soil to hold water and provide nutrients
- 9. small grains of worn down rock and does not hold water well
- 12. under topsoil formed over a long time by water