DO NOWS Feb 7th-10th

• Feb 7th -Mon.- How many acres in the a section?
• Feb 8th Tue. - Quiz
• Feb 9th Wed. - If you see the lines below on a map, what do the lines represent?
• Feb 10th Thurs. - What are the elevation lines on maps called?
• Feb 11th Fri. - Quiz

CONTOUR MAPPING (25pts.)

During this lab you will draw a simple contour map using a model mountain.

PROCEDURE (18pts)

1. Carefully tape the clear plastic sheet to the box lid. This sheet must remain dry.
2. Fill the container with water up to the second black mark (located on the side of the container).  This will be the zero elevation (sea level).  Trace the level of the water using the pen provided.  Note: the ink is very water soluble.
3. Fill the container until half way to the next higher mark.  Trace the water level again
4. Continue filling and tracing, increasing half a mark each time until the mountain is covered.
5. Trace the completed map onto a plain piece of paper.

CONCLUSION (7pts)

GIVEN: Each black mark on the side of the container represents 200ft elevation gain.

1. What is the contour interval for your map?
2. What is the elevation of the mountain?
3. What type of slope is represented by widely spaced contour lines, by closely spaced contour lines?
4. With a different colored pen or pencil circle the areas on your map which represent valleys.  Which way to the contour line point (upslope or downslope)?
5. How are mountains represented by the contour lines?
6. How can you represent the decrease in elevation which occurs at the top of the mountain?

DO NOWS/EASY POINTS (1pt per day)

TO EARN CREDIT INCLUDE

• Date
• Question
• Your Response
• Correct Answer

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