Each candidate should be provided with the following.
A piece of each of the following of about 5cm square:
Omasum labelled A
Reticulum labelled B
Rumen labelled C
Guinea grass labelled H
Rhodes grass labelled I
Elephants grass labelled J
Glycine labelled K
Stylo labelled L
Desmodium labelled M
A knapsack sprayer labelled N
Single superphosphate labelled G1
Compost manure labelled G2
50g clay soils labelled X
50g sandy soil labelled Y
A small strip of d.p.c labelled P
A plumb bob labelled Q
Spirit level labelled R
A try square labelled S
2 boiling tubes
50cm3 water
1. a) From which group of farm animals were the specimens taken?
b) Observe each specimen and describe it.
A. ......................................................................................................................
B. .....................................................................................................................
C. .....................................................................................................................
c) From which parts of the digestive system has each specimen been taken?
A. ...............................................................................................................
B. ...................................................................................................................
C. ...................................................................................................................
d)State one function of each of the parts you have named in (b) above.
A. .......................................................................................................................
B. .......................................................................................................................
C. ........................................................................................................................
2. a) Identify specimens H, I, J, K, L, M which are common pasture plants.
Specimen identity
H ..................................................................................................................
I ....................................................................................................................
J ...................................................................................................................
K ...................................................................................................................
L ....................................................................................................................
M ...................................................................................................................
b) H and L are commonly grown together in a pasture. Give the advantages of this practice.
3. Specimen N is knapsack sprayer.
a) Name the parts labelled 1, 2, 3, 4 and 5.
1. ............................................................................................................................
2. ..........................................................................................................................
3. ..............................................................................................................................
4. ..............................................................................................................................
5. .............................................................................................................................
b) State the functions of each of the parts you have named in (a) above.
1. ..............................................................................................................................
2. ..............................................................................................................................
3. ..............................................................................................................................
4. ..............................................................................................................................
5. ..............................................................................................................................
c) How would you maintain the knapsack sprayer in good working condition?
4. a) Observe specimens G1 and G2 and identify them.
i) G1 ..................................................................................................................
ii) G2 ...................................................................................................................
b) Give three advantages and three disadvantages of using each of the specimen in crop production.
Advantages
G1 ......................................................................................................................................
G2 ......................................................................................................................................
Disadvantages:
G1 .......................................................................................................................................
G2 .......................................................................................................................................
5. Fill a boiling tube up to ¾ of its length with soil sample X. Fill a second boiling tube to the same level with soil sample Y. tap each tube gently on the bench to settle the soil samples in them. Stand the boiling tubes in a test tube rack and gently add 15cm3 of water in each tube allow standing for 2 minutes.
a) (i) Measure the length of the wetted and dry portions of soil in each tube and record in the table below.
| Sample | Length of wet portion(cm) | Length of dry portion (cm) |
| X | ||
| Y |
ii) Calculate percentage of the soil column (length) in each tube which is wetted.
b) Explain the difference in the percentage in (a)(ii) for the two samples.
c) What soil property is being investigated in this experiment?
d) What is the importance of this property in crop production?
6. a) (i) Identify specimen Z
(ii) What name is given to the mixture of specimen Z, sand in the ratio of 1:4 and water?
(iii) Name any three uses of the mixture named in a (ii) above.
b) Identify the following specimens and give their uses in farm building construction.
Specimen identity use in farm building construction
P ....................................... ............................................................................
Q ....................................... ............................................................................
R ....................................... ...........................................................................
S ........................................ .........................................................................