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Testing the soil

posted Feb 13, 2019, 5:56 AM by Owen Breslin   [ updated Feb 13, 2019, 6:07 AM ]
 We started by going to our school garden examining some different soils.We collected some soil samples and classified them inside by doing the following:
  • look at the colour
  • smell it
  • rub it between our fingers to see how it feels
  • try and roll it into a ball
  • see is it dry or moist
  • look for clumps
  • check for sand or gravel
  • look for minibeasts
  • does it contain decaying plant or animal material (humus)

Then we named them sample A,B,C and D.
We felt that A was a loamy soil, B was more of a peaty soil, C was a sandy soil and D was a peaty soil.


    About our soil...
Sample A was a light brown colour,smelt like clay,it felt smooth and sticky,we couldn't roll it into a ball or like a sausage,it felt moist,the size of the particles in the soil were small and it contained clay,worms and roots.
Sample B was a black colour,it didn't smell like anything,it felt rough and sticky,we couldn't roll it into a ball or like a sausage,it felt moist,the size of the particles in the soil were small and medium,it contained clay,no mini-beasts it also contained roots.
Sample C was a gold-brown colour,it didn't smell like anything,it felt rough,you couldn't roll it into a ball or like a sausage,it felt in-between moist and dry,the size of the particles in the soil were medium,it contained clay,no mini-beasts and roots.
Sample D was a dark brown colour,it smelt like grass,it felt rough,you couldn't roll it into a ball or like a sausage,it felt moist,the size of the particles in the soil were medium,it contained clay, no mini-beasts and rocks and leaves.

We then performed an experiment by putting each sample into a jar with water and then shaking it to organise the layers.We found out that the heaviest soil sunk and settled  to the bottom and the lightest soil floated and lay on the top.

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