Wednesday, May 6, 2009

Moisture + Organic Content Test - WRONG
Today I realised that I had done my "Moisture Content + Organic Content" Test completely wrong..
I started it correctly but then somehow I just wasn't thinking and I had thrown away the soil I had weighed after it came out of the incubator instead of weighing it and putting it back in the incubator for the Organic Content Test. I have now gone over this, and I am starting the test again but this time it will be in my oven at home, and then just bringing it into school to re-weigh.

I am re-doing this test on Monday 11th May.
MOISTURE CONTENT/ORGANIC SOIL TEST 1 - REDO:
START MONDAY 11TH MAY

PRESENCE OF SALT (SODIUM CHLORIDE) TEST: - SOIL TEST 1
Today during lunch time and parts of period 5, I did my 'presence of salt' test where I was testing for salts in the sampled soils I had collected.
  1. To begin with I gathered the required equipment needed; 5 funnels, 5 retort stands, medium-sized filter paper, 5 larger beakers, 5 small beakers, 1 dropper bottle silver nitrate, 1 dropper bottle dimineralised water, gloves, safety goggles, spoon
  2. Set up each retort stand with one funnel - having filter paper all ready inside funnel, and 2 beakers (one small and one large)
  3. Once all set up, spoon out each soil sample into each of the 5 large beakers, add dimineralised water to make it into a liquid and stir.
  4. Then pour each of the 5 liquids into each of the 5 funnels. Wait a while for it to filter through.
  5. Once it has filtered through and there is some liquid in the bottom beaker, add drops of silver nitrate into each and record how many drops that have been placed in order to find out how salty the soil is. 1-2 = high, 3-4 = meduim, 5-6 = low
  6. After results are recorded down for each 5 samples, clean up

results shown below;

1-2 = high, 3-4 = meduim, 5-6 = low

Soil: 1
Salt measured: 2 drops = high

Soil: 2
Salt measured: 3 drops = meduim

Soil: 3
Salt measured: 6 drops = low

Soil: 4
Salt measured: 5 drops = low

Soil: 5
Salt measured: 3 drops = meduim

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