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    Soils lab

    APES soils lab


    Soil sample location:

    Soil sample depth:

    Soil team members:


    Overall observations:

      1. what color is the soil?
      2. is it clumped or dusty?
      3. when you grab in your fist, does it stay together?


    1. Sifting test:
      1. Mass each section of the strainer empty
      2. pour your sample into the strainer
      3. shake well
      4. mass each section
      5. subtract empty mass
      6. determine % for each level (mass/total mass)
    2. Percolation test:
      1. pour your complete sample into a massed paper cup
      2. mass the cup and sample
      3. punch a small hole in the bottom of the cup
      4. measure the depth of the soil in the sample (cm)
      5. pour water into the cup, while timing until water drips from the hole
      6. calculate cm/second for your sample
    3. Moisture content test:
      1. pour water over the sample in the percolation test until it is completely covered
      2. let the sample rest overnight
      3. mass the cup and moist soil
      4. subtract cup and dry soil to measure amount of water content
      5. calculate % water (mass of water/mass of soil)
    4. Chemical tests:
      1. mix some of your soil with water (one part soil to 5 parts water)
      2. filter through a coffee filter to get a clear liquid
      3. add the clear liquid to both sides of the soil test unit
      4. add the color capsule matching the test you are doing (green->green) to the smaller chamber
      5. shake well
      6. wait 10 minutes
      7. view in sunlight and record the color you see


    Pre-lab questions:

    Sifting test:

    In your sifting test, you record the following masses for the empty containers:

      1. A level (top) 174 grams
      2. B level 166 grams
      3. C level 152 grams
      4. D level 140 grams
      5. E level (bottom) 126 grams

    Your sample has the following masses:

    A 180 grams

    B 170 grams

    C 160 grams

    D 160 grams

    E 130 grams


    1. What is the total mass for your sample?
    2. What is the % for each layer?
    3. Which layer predominates?
    4. looking at the triangle chart, where would you classify this soil?
    5. In your percolation test, you measure 23 seconds for the water to travel 5.2 cm. What is the percolation rate for this soil? How would this compare to sand or clay?
    6. In your moisture content test, you measure 120 grams of dry soil that has mass 144 grams the next day. What is the moisture content %?

    Quiz 11.6.19
    1. Explain why clay soils hold water more effectively than sandy soils
    2. Which of the three key nutrients is critical for roots and fruits?
    3. Explain the 5 soil layers
    4. What is the perfect soil type, and why?

    Comments

    /groups/apenvironmentalscience/search/index.rss?tag=hotlist/groups/apenvironmentalscience/search/?tag=hotWhat’s HotHotListHot!?tag=hot6/groups/apenvironmentalscience/sidebar/HotListadminadmin2013-02-05 02:24:03+00:002013-02-05 02:24:03updated4Added tag - hotadminadmin2013-02-05 02:24:02+00:002013-02-05 02:24:02addTag3adminadmin2013-02-05 02:05:35+00:002013-02-05 02:05:35updated2First createdadminadmin2013-02-05 02:03:35+00:002013-02-05 02:03:35created1wiki2013-02-05T02:24:03+00:00groups/apenvironmentalscience/wiki/394a8FalseEnergy notes/groups/apenvironmentalscience/wiki/394a8/Energy_notes.htmladmin4 updatesEnergy notes Week of 2.4.13: energy wrap-up e2 video: coal vs. nuclear in class AP exams: FRQ 2002.1 2004.2 2006.1 2007.2 2008.1 ...Falseadmin2013-02-05T02:24:03+00:00adminadmin2013-02-05 02:23:20+00:002013-02-05 02:23:20updated6Added tag - hotadminadmin2013-02-05 02:23:18+00:002013-02-05 02:23:18addTag5adminadmin2013-02-05 02:23:12+00:002013-02-05 02:23:12updated4adminadmin2013-02-05 02:21:48+00:002013-02-05 02:21:48updated3adminadmin2013-02-05 02:20:26+00:002013-02-05 02:20:26updated2First createdadminadmin2013-02-05 02:06:00+00:002013-02-05 02:06:00created1wiki2013-02-05T02:23:20+00:00groups/apenvironmentalscience/wiki/c360bFalseFeb-May plan/groups/apenvironmentalscience/wiki/c360b/FebMay_plan.htmladmin6 updatesFeb-May plan 1. conclusion of energy chapters (see previous wiki) 2. GCC AP questions FRQ: 2006.2 2005.3 2005.4 2007.3 ...Falseadmin2013-02-05T02:23:20+00:00adminadmin2012-03-07 05:53:55+00:002012-03-07 05:53:55updated14adminadmin2012-03-07 05:43:38+00:002012-03-07 05:43:38updated13adminadmin2012-03-07 05:41:35+00:002012-03-07 05:41:35updated12adminadmin2012-03-07 05:38:57+00:002012-03-07 05:38:57updated11Added tag - hotadminadmin2012-03-07 05:38:55+00:002012-03-07 05:38:55addTag10adminadmin2012-03-07 05:36:47+00:002012-03-07 05:36:47updated9adminadmin2012-03-07 05:22:26+00:002012-03-07 05:22:26updated8adminadmin2012-03-07 05:20:01+00:002012-03-07 05:20:01updated7adminadmin2012-03-07 05:18:58+00:002012-03-07 05:18:58updated6adminadmin2012-03-07 04:58:55+00:002012-03-07 04:58:55updated5adminadmin2012-03-07 04:57:33+00:002012-03-07 04:57:33updated4adminadmin2012-03-07 04:56:53+00:002012-03-07 04:56:53updated3adminadmin2012-03-07 04:54:20+00:002012-03-07 04:54:20updated2First createdadminadmin2012-03-07 04:53:33+00:002012-03-07 04:53:33created1weblog2012-03-07T05:53:55+00:00groups/apenvironmentalscience/weblog/de030FalseGreen Apple/groups/apenvironmentalscience/weblog/de030/Green_Apple.htmladmin14 updatesGreen Apple Team, Please watch this video about NYC: Trailer: http://www.pbs.org/e2/episodes/101_the_green_apple_trailer.html On the server: http://physics.hpa...Falseadmin2012-03-07T05:53:55+00:00adminadmin2011-09-13 19:08:24+00:002011-09-13 19:08:24updated4Added tag - hotadminadmin2011-09-13 19:08:22+00:002011-09-13 19:08:22addTag3adminadmin2011-09-13 19:08:10+00:002011-09-13 19:08:10updated2First createdadminadmin2011-09-13 19:04:30+00:002011-09-13 19:04:30created1weblog2011-09-13T19:08:24+00:00groups/apenvironmentalscience/weblog/4ecddFalseQuestions for Wednesday, wiki adds/groups/apenvironmentalscience/weblog/4ecdd/Questions_for_Wednesday_wiki_adds.htmladmin4 updatesQuestions for Wednesday, wiki adds Team, I'd like to try something for class tomorrow: each of you to create a question from chapter 3, and email it to me by this evening (Tuesday). 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You should be able to do the following after logging in with your account: To create a new page, click the ...Falseadmin2011-09-08T21:36:21+00:00hot/groups/apenvironmentalscience/search/index.rss?sort=modifiedDate&kind=all&sortDirection=reverse&excludePages=wiki/welcomelist/groups/apenvironmentalscience/search/?sort=modifiedDate&kind=all&sortDirection=reverse&excludePages=wiki/welcomeRecent ChangesRecentChangesListUpdates?sort=modifiedDate&kind=all&sortDirection=reverse&excludePages=wiki/welcome0/groups/apenvironmentalscience/sidebar/RecentChangesListmodifiedDateallRecent ChangesRecentChangesListUpdateswiki/welcomeNo recent changes.reverse5searchlist/groups/apenvironmentalscience/calendar/Upcoming EventsUpcomingEventsListEvents1Getting events…