GSTS WASSCE Integrated Science Mock Questions

Ghana Secondary Technical School, GSTS WASSCE Integrated Science Mock Questions

Candidates who attempt GSTS WASSCE integrated science mock questions and pass will surely pass the West African Secondary School Certificate Examination with flying colors. Ghana Secondary Technical School is based in Takoradi and currently regional NSMQ champions of Western Region

 

Paper 2: Essays (80) marks

Answer any four questions only from this section – 1 1/2 hours

All questions carry equal marks: GSTS WASSCE Integrated Science Mock Questions

1. a. i. List the three major types of weathering

ii. Explain the role of temperature in weathering of rocks

b. A 100W heater is connected to a 240V mains supply. Calculate the

i. current drawn ii. resistance of the heater

c. i. List three compounds which have electrovalent bond

ii. Give two characteristics of electrovalent compounds

d. i. What is rhesus factor

ii. Explain briefly  how the rhesus factor in humans could results in miscarriage

 

2. a. i. Explain briefly how solar energy is used to generate electricity

ii. state two uses of solar energy

b. i. state five ways of conserving water at home

c. i. state three management practices to ensure high yield in maize production

ii. Explain how two of the management practices stated in (i) help in ensuring high yield of maize

d. state i. two effects of air masses  on the environment

ii. three ways by which global warming can be reduced

 

GSTS WASSCE Integrated Science Mock Questions

3. a. i. Explain why aluminum resists corrosion but iron does not

ii. state two methods of preventing iron from rusting

b. i. Explain the term culling as used in livestock management

ii. state three benefits of practicing culling

c. i. Distinguish between grafting and budding

ii. Give three reasons for grafting and budding

d. i. state the principles of conservation of energy

ii. state the energy transformation that occurs in each of the following devices

n. a moving motrocycle m. a television set in operation

 

4. a. i. what are secondary colours of light

ii. Name the colour that results from the combination of each of the following pair of colours of light

n. red and green m. blue and green o. red and blue

b. i. Define the mole of a substance

ii. Calculate the number of atoms in 18g of magnesium metal (Mg = 24, Avogadro number = 6 x 10²³)

c. i. Differentiate between bone and cartilage

ii. Name three parts of human body where cartilage are found

d. i. Explain the term deep litter system as used in poultry

ii. Give three advantages of the deep litter system

 

GSTS WASSCE Integrated Science Mock Questions

5. a. Explain how each of the following actions causes loss of soil nutrients

i. crop removal ii. continuous cropping iii. drainage

b. i. Give the reason for using each of the following devices in household wiring

n. earthing m. stabilizer o. fuse

ii. Explain the behaviour of a p-n junction diode when it is forward biased

c. State in which way each of the following factors is important in germination of seed

i. water ii. oxygen iii. warmth iv. sunlight

d. The table below shows a list of some chemical substances and the sources from which they ae obtained but not correctly matched. In a tabular form, match each of the substances with their sources

Substances	Source
I. Ammonia	Lime water
Ii. Potassium hydroxide	Sour palm wine
Iii. Calcium oxide	Green vegetables
Iv. Ethanoic acid	Ashes of plants
V. Ascorbic acid	Decomposed organic matter

 

6. a. i. What is meant by insanitary condition

ii. State three ways by which fire from electrical causes can be prevented

b. i. Give three effects of ectoparasites on cattle

ii. List four methods of controlling ectoparasites on livestock

c. Describe briefly how a standard solution of sodium hydroxide is prepared in the laboratory

d. i. Define displacement

ii. A bird flies with a constant velocity of 100 m/s for 10 minutes. Calculate the magnitude of its displacement.

 

Paper 3: Objectives

Answer all the questions in this section. GSTS WASSCE Integrated Science Mock Questions

1. A piece of iron rusts when it comes into contact with

a. air only b. moisture only c. oil only d. air and moisture only

 

2. Vegetative propagation method is commonly used in the cultivation of

a. banana b. cocoa c. cowpea d. pawpaw

 

3. An atom of an element Q has 23 protons and 26 neutrons. Determine the number of electrons

a. 3 b. 23 c. 26 d. 40

 

4. Which of the following devices alters an alternating current

a. diode b. dynamo c. rectifier d. transformer

 

5. Diseases that are easily transmitted from one organism to another through a vector are said to be

a. contagious b. endemic c. infectious d. viral

 

GSTS WASSCE Integrated Science Mock Questions

6. The function of the pinna of the human ear is to

a. change sound waves into radiations b. change sound waves into electrical impulse

c. receive and retract sound waves d. receive and transmit sound waves

 

7. It is obligatory to wear goggles in the laboratory when handling substances that

a. are corrosive b. are highly flammable c. are poisonous d. emit sparks

 

8. Comma-shaped bacteria are known as

a. bacilli b. cocci c. Spirilla d. Vibros

9. A solution contains 18.0g of glucose  per dm³ Determine its molarity (molar mass of glucose, C₆H₁₂O₆  = 180)

a. 0.01M b. 0.02M c. 0.10M d. 0.20M

 

10. An example of root tuber is

a. cassava b. groundnut c. onion d. yam

 

GSTS WASSCE Integrated Science Mock Questions

11. Which of the following industries is operated as a small-scale industry in Ghana

a. aluminium b. computer production c. soap production d. petrol production

 

12. IN poultry production, temperature is an important factor during brooding because the chicks

a. have no access to natural vegetation b. have to overcome stress of transportation

c. have not developed feathers d. need adequate ventilation

 

13. The power rating of an electric stove is 750V. Determine the current flowing through it if its resistance is 15

a. 7.07A b. 50.00A c. 62.5A d. 6250.00A

 

14. The seed of flowering plant imbibes water through the

a. hillium b. integument c. micropyle d. testa

 

15. Which of the following pairs of elements can combine to form an ionic compound

a. C and O b. N and Mg c. H ans S d. Cu and O

 

GSTS WASSCE Integrated Science Mock Questions

16. Kerosene, diesel and bitumen are obtained from crude oil by a process called

a. cracking b. chromatography c. sublimation d. fractional distillation

 

17. In flowering plants, mineral salts are transported through the

a. cambium b. phloem c. stoma d. xylem

 

18. Fertilization in humans usually occurs in the

a. ovary b. oviduct c. uterus d. vagina

 

19. The general molecular formular of alkanes is

a. CnH2n b. CnH2n-2 c. CnH2n-1 d. CnH2n+2

 

20. The frictional force between two bodies on the

a. area of the surface in contact b. speed at which the bodies are moving

c. nature of the surfaces of the bodies in contact d. movement of the bodies in contact

 

GSTS WASSCE Integrated Science Mock Questions

21. Lactic acid can be found in

a. grape b. orange c. palm oil d. sour milk

 

22. An example of an ectoparasite is

a. housefly b. tapeworm c. tick d. liver fluke

 

23. A tall maize plant with genotype TT is crossed with a short maize plant with genotype tt. What will be the genotype of their offsprings

a. 50% TT b. 50% tt c. 100% Tt d. 100% TT

 

The diagram below is an illustration of NPN transistor. Study it carefully and answer questions 24 and 25.

24. The function of the part labelled II is to supply

a. protons b. voltages c. negative charges d. positive charges

 

25. The part labelled I is

a. base b. collector c. emitter d. resistor

 

GSTS WASSCE Integrated Science Mock Questions

26. Bacteria belong to kingdom

a. animalia b. fungi c. porkaryotae d. protoctista

 

27. The bicuspid valve in the hart of a mammal is located between the

a. left auricle and the left ventricle b. aorta and the left auricle

c. right auricle and the right ventricle d. right auricle and the superior vena cava

 

28. Land and sea breezes occur as a result of

a. conventional currents b. the different position of the moon

c. the revolution of the earth d. heat transfer by land

 

29. A test for hydrogen in the laboratory is

a. a characteristic irritating smell b. a ‘pop’ sound produced with a glowing splint

c. production of pungent smell d. rekindling of glowing splint

 

30. Which of the following effect are associated with late harvesting of maize

i. increase in crop yield ii. rain may cause grain to rot

iii. weevils may attack and destroy grain  iv. exposure of maize to attacks by birds and rodents

a. i and ii only b. iii and iv c. i, ii and iv only d. ii, iii and iv only

 

GSTS WASSCE Integrated Science Mock Questions

31. All the following are major plant nutrients except

a. calcium b. iron c. magnesium d. Sulphur

 

32. How many moles of substances are in 4g of NaOH

a. 160 b. 10 c. 0.14 d. 0.1

 

33. The main stomach of a ruminant is the

a. abomasum ii. omasum c. reticulum d. rumen

 

34. A transistor can be used aa i. switch ii. rectifier iii. amplifier. Which of the statements above is/are correct

a. i only b. i and iii only c. ii and iii only d. i, ii and iii

 

35. The blinking of the human eye is considered a reflex action because it is

a. initiated from the cerebrum b. an automatic response

c. a delayed response d. under the control of the heart

 

GSTS WASSCE Integrated Science Mock Questions

36. Which of the following organisms is regarded as both living and non-living thing

a. amoeba b. bacteria c. spirogyra d. virus

 

37. A lump of gold has a density of 8gcm^-3 and a volume of 20cm³. Determine the mass of the gold

a. 0.4g b. 2.5g c. 28.0g d. 160.0g

 

38. The main method of propagating cassava is

a. budding b. grafting c. seed d. stem cutting

 

39. Which of the following pairs of compounds belongs to the same homologus series

a. C₃H₆and C₃H₈ C₄H₁₀ and C₅H₁₀ c. C₂H₄ and C₄H₁₀ d. C₂H₆ and C₄H₁₀

 

40. Local breeds of fowl are i. small in size ii. slow growers iii. highly resistant to diseases

a. i only b. i and ii only c. ii and iii only d. i, ii and iii

 

GSTS WASSCE Integrated Science Mock Questions

41. The major fraction of crude oil are separated by

a. chromatography b. condensation c. fractional crystallization d. fractional distillation

 

42. The gestation period of cow is approximately

a. seven months b. eight months c. ten months d. eleven months

 

43. A metal that could be used in the laboratory preparation of hydrogen gas is

a. copper b. mercury c. silver d. zinc

 

44. Water referred to as universal solvent because it

a. dissolves all substances b. react with base to produce salt

c. dissolves most substances d. changes blue litmus solution to red

 

45. All the following plant seeds undergo epigeal germination except

a. cowpea b. flamboyant c. maize d. castor oils

 

GSTS WASSCE Integrated Science Mock Questions

46. The temperature of a body is 80^oC. the body’s temperature in kelvin is

a. 80 K b. 253 K c. 335 K d. 353 K

 

47. A force of 90N was used to raise a load of 450 N. Determine the mechanical of the machine

a. 18000 b. 380 c. 80 d. 5

 

48. Liming the soil improves its fertility by

a. neutralizing soil acidity b. decreasing the activity of soil micro-organism

c. improving soil structure d. reducing soil erosion

 

49. The energy possessed by a boy on top of a wall is

a. chemical energy b. heat energy c. kinetic energy d. potential energy

 

50. Which of the following elements is a constituent of brass

a. iron b. magnesium c. tin d. zinc

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