Across
- 3. the air we breath all the way to space
- 6. this layer of soil is above bedrock
- 12. rain, snow, sleet, hail
- 13. plants sweating water
- 14. living material
- 16. the middle size particle of soil
- 17. this soil is below topsoil
- 18. the smallest particle of soil
- 19. dirt, earth
- 20. how soil is made over 1000s of years
Down
- 1. will disappear over time in nature
- 2. the layer of air where we live
- 4. water becomes vapour when heated
- 5. the layer of air where aeroplanes usually fly
- 7. water flowing over the land
- 8. soil under the organic layer
- 9. layer of air with ozone
- 10. the process of water that repeats
- 11. makes the world dirty
- 15. the largest particle of soil