1. Soils Quiz Show Ga Ag Ed Curriculum Office, July 2002 Adapted for Colorado Soils Curriculum 2006

2. Let’s Get Physical Expanding Horizons Soil Color It’s How You Feel General Soil 1 1 1 1 1 2 2 2 2 2 3 3 3 3 3 4 4 4 4 4 5 5 5 5 5

3. Phy. Properties for 1 Question: The _____ of the soil refers to the size of the individual soil particles. Check Your Answer

4. Phy. Properties for 1 Answer: texture Back to the Game Board

5. Phy. Properties for 2 Question: Positively charged nutrients in the soil are called ________. Check Your Answer

6. Phy. Properties for 2 Answer: cations Back to the Game Board

7. Phy. Properties for 3 Question: What is slope? Check Your Answer

8. Phy. Properties for 3 Answer: reflects the change in elevation of the soil surface over 100’ horizontally Back to the Game Board

9. Phy. Properties for 4 Question: What determines the acid level of the soil? Check Your Answer

10. Phy. Properties for 4 Answer: pH Back to the Game Board

11. Phy. Properties for 5 Question: Groups of clinging soil particles are called ______. Check Your Answer

12. Phy. Properties for 5 Answer: peds Back to the Game Board

13. Soil Horizons for 1 Question: Soil from rock or from organic material will form in layers that lie ____ to the surface of earth. Check Your Answer

14. Soil Horizons for 1 Answer: parallel Back to the Game Board

15. Soil Horizons for 2 Question: If the upper horizon is classified as an “Ap” Horizon – what does that mean? Check Your Answer

16. Soil Horizons for 2 Answer: It is an A horizon that has been “plowed” or disturbed. Back to the Game Board

17. Soil Horizons for 3 Question: The “A” horizon is generally _____ than the horizons below and may be from a few inches to several feet thick. Check Your Answer

18. Soil Horizons for 3 Answer: darker Back to the Game Board

19. Soil Horizons for 4 Question: The bedrock upon which the other soil horizons rest is called the __ horizon. Check Your Answer

20. Soil Horizons for 4 Answer: “R” Back to the Game Board

21. Soil Horizons for 5 Question: This layer is the material from which soil originated. Check Your Answer

22. Soil Horizons for 5 Answer: “C” Horizon Back to the Game Board

23. Soil Color for 1 Question: What is one factor that gives soil color? Check Your Answer

24. Soil Color for 1 • Answer: One of: • Organic matter • Weathered mineral matter • Iron present Back to the Game Board

25. Soil Color for 2 Question: What are the basic color classifications of soils? Check Your Answer

26. Soil Color for 2 • Answer: • Light • Medium • Dark Back to the Game Board

27. Soil Color for 3 Question: What standard chart is used to determine soil color in the field? Check Your Answer

28. Soil Color for 3 Answer: Munsell Color Chart Back to the Game Board

29. Soil Color for 4 Question: What is the difference between Hue, Value, and Chroma? Check Your Answer

30. Soil Color for 4 Answer: Hue: dominant spectral (red, yellow, blue, green) Value: relative blackness or whitness Chroma: Purity of “color” Back to the Game Board

31. Soil Color for 5 Question: What are mottles in the soil? Check Your Answer

32. Soil Color for 5 Answer: spots of colors in the soil – usually indicates poor aeration Back to the Game Board

33. Soil – Texture for 1 Question: What is the smallest soil texture? Check Your Answer

34. Soil - Texture for 1 Answer: Clay Back to the Game Board

35. Soil - Texture for 2 Question: What is the largest soil particle type? Check Your Answer

36. Soil - Texture for 2 Answer: sand Back to the Game Board

37. Soil - Texture for 3 Question: How can you test soil texture? Check Your Answer

38. Soil - Texture for 3 • Answer: • Ribboning method • (b) using soil sieves to measure Back to the Game Board

39. Soil - Texture for 4 Question: What are the 3 soil types? Check Your Answer

40. Soil - Texture for 4 Answer: 1) Sand 2) Silt 3) Clay Back to the Game Board

41. Soil - Texture for 5 Question: What does loam mean? Check Your Answer

42. Soil - Texture for 5 Answer: A mixture of sand, silt, clay Back to the Game Board

43. Soil for 1 Question: _______ is the most precious natural resource we have. Check Your Answer

44. Soil for 1 Answer: soil Back to the Game Board

45. Soil for 2 Question: _____ are soils derived from volcanic sources. Check Your Answer

46. Soil for 2 Answer: andisols Back to the Game Board

47. Soil for 3 Question: The most common soil organisms are _________. Check Your Answer

48. Soil for 3 Answer: nematodes Back to the Game Board

49. Soil for 4 Question: _____ are soils that settle to the bottom of rivers and streams when the water is moving rapidly. Check Your Answer

50. Soil for 4 Answer: alluvial Back to the Game Board