WATER HOLDING CAPACITY (19 pts)

Stapled to Partner's Lab (2pts)

I. PURPOSE (2pts)

II. PROCEDURE (2pts)
 
III. RESULTS (7pts)
  1. Mass of wet empty apparatus_g
  2. Mass of dry soil and apparatus _g
  3. Mass of dry soil (#2-1) _g
  4. Mass of drained soil and apparatus _g
  5. Mass of H2O added (#2-4) _g
  6. % H2O holding capacity (#3/5 x 100) _g

IV. CONCLUSION (6pts)
  • How does your result compare to the other groups with the same soil horizon?
  • How did your horizon compare to the other horizons?
  • Calculate the % gases in the original dry soil.

MOISTURE CONTENT (18pts)

Stabled to Partner's Lab (2pts)

I. PURPOSE (2pts)

II. PROCEDURE (2pts)

III. RESULTS (8pts)
  1. Mass of canister _g
  2. Mass of canister w/ soil _ g
  3. Mass of soil (#2-1) _g
  4. Mass after 24hrs _g
  5. Mass after 48hrs _g
  6. Mass of moisture _g
  7. % moisture (#6/3 x 100) _ g

IV. CONCLUSION (4pts)
  • How did your answer compare to the other groups with the same soil horizon?
  • How did you answer compare to the other groups with different soil horizons?

ORGANIC CONTENT LAB (17pts)

Stabled to Partner's Lab (2pts) 


I. PURPOSE (2pts)


II. PROCEDURE (2pts)


III.RESULTS (7pts)
  1. Mass of crucible__g
  2. Mass of crucible with soil _g
  3. Mass of # 2-1 = _g
  4. Mass of soil after 20min of burning _g
  5. Mass of organics # 2-4 = _g
  6. % organics #5/3 x 100 = _ g
IV. CONCLUSION (4pts)
  • How did your % organics compare to other groups with the same horizon?
  • How did the other horizons compare to yours?

TEXTURING LAB (23 pts)

Stabled to Partner's Lab (1pts) 


I. PREDICTIONS (6pts)

  • HORIZON- sand, silt, clay comparison 3pts

HORIZON
SAND
SILT
CLAY
A



B/C




  • SOIL FORMING FACTOR 3pts
    • Choose one of the five soil forming factors and make a prediction about the difference between the soil collect in the bottoms(Fernadale Soil Series) with the soil found in the hills (Empire Soil Series)
II. PURPOSE (1pts)

III. PROCEDURE (1pts)

IV.  RESULTS (5pts)







  • Write the results from texturing the four Humboldt soils and using the texturing flow chart
V. CONCLUSION (9pts)
  • How do your results compare to the rest of the class?
  • Why do you think people get different results?
  • From the texture triangle, what soil is 10% sand, 45% silt, 45% clay?
  • From the texture triangle what are the possible ranges for clay loam?
*click below to view a texture triangle*
http://www.soilsensor.com/images/soiltriangle_large.jpg



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