AGRIC PRACTICAL

Wednesday 20th April 2016
AGRIC PRACTICAL 9.30AM – 11.00AM
(1a)
Experiment to compare the porosity and water holding
capacity
(1b)
Grind loam and clay soil into fine particles, after drying in
the sun. Equal masses of the dry, dry clay and dry loam are
place seperately into three funnels which are blocked at the
neck with cotton wool. The three funnels containing different
types of soil are then placed on top of the three measuring
cylinders. Then quickly pour equal amount of water into the
funnels, containing each soil type. Then leave for an hour
(1c)
(i)Loamy
(ii)Sandy
(iii)Clay
(1d)
(i) I will ensure the three funnels containing different types
of soil are placed on top of the three measuring cylinders
(ii) I will ensure equal amount of water is quickly poured into
the funnels containing the soil type
(1e)
-Sandy soil:
Because the porosity is high in sandy soil because of large
pores spaces and larger particles sizes
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(4a)
N:
-Animal feed industry
-ceramic Industry
-pharmaceutical industry
O:
-paint industries
-pharmaceutical industries
-cosmetic industries
(4b)
-it causes loss of weight
-it causes loss of appetite
-it causes anaemia
-it damages some internal organs
-it prevent respiration
(4c)
-by dipping the animal
-by drenching
-by clearing bushes around
-by giving the animal injection
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