2017/2018 WAEC/WASSCE SSCE ALL SPIECMEN/PRACTICAL SOLUTION QUESTIONS AND ANSWERS

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BIOLOGY PRACTICAL SPECIMEN

Group I
Specimen A: A slice of fresh bread.
Specimen B: A slice of bread with mould.
Specimen C: Longitudinal section of hard boiled egg with the shell intact.
Specimen D: Freshly laid egg.
Specimen E: Transverse section of orange/any citrus fruit.
Specimen F: Freshly procured green leafy vegetables
Specimen G: Fresh stomach of a Goat/Sheep/Cow(small piece)
Specimen H: Fresh Liver of a Goat/Sheep/Cow(small piece)
Specimen J: Fresh Small Intestine of a Goat/Sheep/Cow(small piece).
Specimen K: Fresh Lung of a Goat/Sheep/Cow(small piece).
Specimen L: Fresh Gall bladder of a Goat/Sheep/Cow(with the fluid intact)
Specimen M: Fresh Kidney of a Goat/Sheep/Cow(Longitudinal Section; bilaterally symmetrical)


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Group II
Specimen N: Some Rheodiscolor leaves(about 3cm² in diameter in a petri dish containing water)
Specimen P: Palm fruit(with the outer covering intact)
Specimen Q: Tridax plant(put in a petri dish)
Specimen R: Grasshopper



Group III
Specimen S: Toad(wet preserved)
Specimen T: Freshly uprooted grass species
Specimen U: Brightly coloured lizard(wet preserved)
Specimen V: A branch of Cactus plant
Specimen W: Locust (wet preserved)



Note:
(i) Specimen N, P, Q and R are peculiar to candidates in Ghana only and should not be provided for candidates in Nigeria, Sierra Leone and The Gambia.
(ii) specimens S, T, U, V and W are peculiar to candidates in Nigeria, Sierra Leone, and the Gambia only and should not be provided for candidates in Ghana.
(iii) All specimens can be provided as group specimens for fifteen(15) candidates.
(iv) All specimens in each group must carry individual labels(e.g A, B, C, D, E, F, G, H, J, K, L, M in Group I)
Materials:
(i) glass jar cover or petri dish;
(ii) scalpel or razor blade;
(iii) a beaker;
(iv) a pair of forceps;
(v) plain white sheet of paper ;
(vi) magnifying lens/hand lens ;
(vii) test tubes;
(viii) iodine solution;
(ix) white tiles.

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CHEMISTRY PRACTICAL SPECIMEN:

(1) In addition to the fittings and reagents normally contained in a chemistry laboratory, the following apparatus and materials will be required by each candidate


(a) one burette of 50cm3 capacity
(b) one pipette, either 20cm3 or 25cm3. All candidates at one centre must use pipettes of the same volume. These should be clean and free from grease
(c) The usual apparatus for titration
(d) the usual apparatus and reagents for qualitative work including the following with all reagents appropriately labelled.
(i) glass rod
(ii) aqueous ammonia
(iii) dilute hydrochloric acid
(iv) dilute sodium hydroxide solution
(v) barium chloride solution
(vi) dilute trioxonitrate (V) acid
(vii) silver trioxonitrate (V) solution
(viii) dilute tetraoxosulphate (VI) acid


(e) glass rod
(f) filtration apparatus
(g) spatula
(h) two boiling tubes
(f) four test tubes
(g) wash bottle containing distilled/deionized water
(h) mathematical table/calculator.


QUESTIONS II
(2) Each candidate should be supplied with the following, where ‘n’ is the candidate’s serial number.


(a) 150cm3 of ethanedioic acid (H2C204) solution in a corked flask or bottled labelled ‘An’. These should all be the same containing 4.50g of H2C204 per dm3 of solution.


(b) 150cm3 of potassium tetraoxomanganate (VII) solution in a corked flask or bottle labelled ‘Bn’. These should all be the same containing 3.16g of KMnO4 per dm3 of solution.


(c) One spatulaful of a uniform mixture of NaCl and ZnCO3 in a specimen bottle labelled ‘Cn’. The components of the mixture should be in the ratio 1:1 by mass.


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AGRIC PRACTICAL SPECIMEN
A: RANGING POLE ;
B: SURVEY PIN;
C: MEASURING TAPE ;
D: WHEELBARROW ;
E: SICKLE ;
F: HAND TROWEL
G: GRASSHOPPER
H: BEAN BEETLE
I: BIRD
J: RAT
K: FUR
L: SKIN
M: HORN
N: BONE
O: EGG
P: ROUND WORM
Q: TICK
R: LOUSE
S: TAPEWORM
T: WATER LEAVES
U: GUINEA GRASS

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WAEC 2016 SPECIMEN: PHYSICS PRACTICAL



QUESTION 1
Uniform metre rule;
Knife edge;
100g mass labelled N;
50g mass labelled M;
Thread 2m;
Sellotape;



QUESTION 2
Beaker (0-500cm3);
Thermometer (0-110 degree C);
Measuring cylinder (0-500cm3);
50g mass;
A pair of tongs;
Bunsen burner (source of heat);
Tripod stand;
Water, wire gauze, stirrer;
Stop clock/watch;
Flat plank (10cm x 15cm);



QUESTION 3
Variable d.c power supply;
(Battery rack capable of containing five 1.5V dry cells in series);
2 ohms standard resistor;
Key;
Ammeter (0-3A);
Voltmeter (0-5V);
Six connecting wires.


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