Across
- 2. soil formed in the same place where the rock was broken down
- 6. All the water on Earth, regarding its physical state
- 8. the solid, outer part of Earth, including the crust and the upper mantle
- 10. a gas humans release when breathing out
- 13. subsoil layer with minerals and less organic matter
- 16. the closest layer of the atmosphere to us, where weather happens and where we live
- 18. the layer above the troposphere - it contains the ozone layer that protects us against UV radiation
- 19. mixture of tiny rocks, organic matter, water, and air - plants grow in it
Down
- 1. a vertical section showing the layers (horizons) of soil from the surface to the bedrock
- 3. soil that is created by bedrock, but carried away from one place to another by wind or water
- 4. decayed plants and animals that add nutrients to the soil
- 5. topsoil layer where plants grow
- 7. the outermost layer of the atmosphere that slowly fades into space
- 9. The way Earth's atmosphere traps heat from the Sun, helping to keep the planet warm
- 11. the most common gas in the atmosphere
- 12. the solid rock found beneath soil layers
- 14. middle layer of the atmosphere that is the coldest one
- 15. the breaking down of rocks into smaller fragments by wind, water, pressure, or temperature changes
- 17. process of soil or rock being worn away by wind, water, or human activity