BECE Past Questions & Answers – 1996 (SCIENCE)

August 1996

SCIENCE

SECTIONA OBJECTIVETEST
45 minutes

1. Which ofthe followingis a sexuallytransmitted disease?
A. Cholera
B. Rickets
C. Tuberculosis
D. Syphilis
E. Measles

2. The excretoryorgans in man arethe
A. Kidneysand urethra
B. Kidneysand the skin
C. Kidneys, lungs andtheskin
D. Kidneysand the lungs
E. Kidneys, bladderand urethra

3. Which ofthe followingfarmingpractices isthe best wayof maintainingsoil fertility?
A. Crop rotation
B. Seasonal cropping C. Constant ploughing D. Bush burning
E. Mono cropping

4. Which ofthe followingisnot considered asa reflexaction?
A. Blinkingof theeye
B. Movingthe handfrom ahot object
C. Jerkingof theknee
D. Talkingwhileeating
E. Coughingto removean object from thethroat

5. A boyexerts a forceof 40.0 N to lift a load into avehicle.If thework doneis 80.0 J, calculate the distancethrough which theload is lifted.
A. 0.5 m B. 2.0 m C. 40.0 m
D. 120.0 m

E. 3200.0 m

6. Which ofthe following arrangements is the correct order ofincreasing complexityof thestructure?
A. Cells→systems→tissues→organs B. Cells→tissues →systems→organs C. Cells→organs →tissues→systems D. Cells→systems→organs→tissues E. Cells→tissues →organs→systems

7. Thelawofconservation of energystates that energycan
A. be created but not transformed
B. bedestroyed but nottransformed
C. neither becreated nortransformed
D. not be created but can betransformed
E. neither becreated nordestroyed, but onlybetransformed

8. On themoon, therearelargeholescalled
A. valleys B. gullies C. spurs D. craters E. pits

9. Thedarkest part of ashadow formed during an eclipse is called
A. Lunar eclipse
B. Annular eclipse
C. Penumbra
D. Umbra
E. Solar eclipse

10. Themain waste products formed in plants are
A. water, carbondioxide and urea
B. water, carbondioxide and oxygen
C. water, carbondioxide and mineral salts
D. water, ammoniumcompounds and oxygen
E. water, ammoniumcompounds and carbondioxide

11. A mixtureof sand and watercan beseparated through
A. filtration
B. ionization
C. condensation D. sedimentation E. evaporation

12. Which ofthe following chemical equations is the correct representation ofthe preparation ofcarbon dioxide?
A. CaCO3+2HCl→CaO +Cl2+H2+CO2
B. CaCO3+2HCl→CaCl2+H2CO3
C. CaCO3+2HCl →CaO +Cl2+H2O +CO2
D. CaCO3+2HCl → CaCl2+H2+CO2
E. CaCO3+2HCl → CaCl2+H2O +CO2

13. Which ofthe followingis not an exampleof matter?
A. Hydrogen
B. Oxygen
C. Light
D. Water
E. Charcoal

14. A stonewith mass 80.0 gwas put into ameasuringcylinder containingwater.If thewater level rises by
20.0 cm, calculatethe densityofthe stone. A. 0.25 gcm-3
B. 1.20 gcm-3
C. 1.80 gcm-3
D. 3.30 gcm-3
E. 4.00 gcm-3

15. Thesun is madeup ofburning
A. gases B. rocks C. gold D. coal
E. sulphur

16. The forceovercome byamachine is known as the
A. effort B. load C. pivot D. lever E. work

17. Calculate thework donewhen aweight of 20.0Nis liftedverticallythrough adistanceof 10.0cm
A. 2000.0 J B. 200.0 J C. 20.0 J
D. 2.0 J E. 0.2 J

18. Heat travels throughavacuum byaprocess known as
A. conduction B. convection C. radiation
D. vibration
E. transmission

19. Soilaeration can beimproved by
A. Addingmineral to the soil
B. Application of fertilizer to thesoil
C. Weathering
D. Activities of earthworms
E. Manuring

20. Which ofthe following does not playanypart indigestion?
A. Mouth
B. duodenum
C. rectum D. pancreas E. Stomach

21. Mostmachines waste energybecause of
A. old age
B. force
C. friction
D. load
E. too much effort

22. All the followingadd nitrates to thesoil except
A. Okro
B. Broad beans C. French beans D. Groundnuts E. Pigeon pea

23. Theblood in mammals is composed of
A. a red liquid
B. red blood cells andwhiteblood cells
C. liquid plasma and solid corpuscles
D. blood protein and glycerol
E. sugar and mineral saltsonly

24. Inamachine, 200.0 Jofenergywas lost as heat.Ifthe energyinputis 600.0 J, what is the efficiencyof the machine?
A. 67%

B. 40%
C. 33%
D. 30%
E. 12%

25. Thetypeof energystored in fuels is called
A. light energy
B. solar energy
C. electrical energy
D. kinetic energy
E. chemical energy

26. An object at rest mayhave
A. velocity
B. momentum
C. kinetic energy D. potential energy E. acceleration

27. Birds are able to flybecause theyhave
A. hollow bones
B. web legs
C. tail feathers
D. flat chest
E. wideeyes

28. The chiefsourceof energyin theworld todayis
A. coal
B. crudeoil
C. naturalgas
D. uranium
E. water

29. Which ofthe followingis used byplants to makeits food?
A. carbonmonoxide
B. oxygen
C. carbondioxide
D. hydrogen
E. nitrogen

30. Sleepingsickness is spread by
A. blackfly
B. firefly
C. Mosquito
D. Housefly

E. Tsetse fly

31. An exampleof acrop that reduces the fertilityofthe soil rapidlyis
A. Beans
B. Legumes
C. Groundnuts
D. Cassava
E. Plantain

32. Theblackpod diseasewhich attacks cocoapods is causedby
A. virus
B. bacterium
C. plasmodium
D. fungus
E. protozoa

33. Theorgan which enables a fish to breathe in water is the
A. Nostril
B. Pectoral fin
C. Dorsal fin
D. Gallbladder
E. Gill

34. Which ofthe following part ofa flowergrows into the seed?
A. Stamen B. Ovule C. Ovary D. Stigma E. Sepal

35. When the palms of thehand are rubbed together,kinetic energyis changedto
A. thermal energy B. potential energy C. solar energy
D. elastic energy
E. chemical energy

36. Trees in desert regions havethick barkswhich enables themto
A. prevent heat loss B. absorb morelight C. prevent water loss D. absorb morewater
E. absorb moreoxygen

37. Which ofthe followingis true about loamysoil?

I. Isformed from amixtureof sand and clay
II. It isgood forplant cultivation
III. Its waterretention is poor

A. Ionly
B. I andIIonly C. I andIIIonly D. IIandIIIonly E. I,IIandIII

38. Inwhich part of the alimentarycanal is food finallychanged into a form that can beabsorbed into the bloodstream?
A. small intestines
B. oesophagus
C. mouth
D. stomach
E. largeintestines

39. Inwhich units arethe vast distances between stars in spacemeasured?
A. Knots
B. Kilometres
C. Furlongs
D. Miles
E. Lightyears

40. Which ofthe following happens duringfertilization in humans?
A. A membraneforms around the egg B. onlyonesperm fuses with the egg C. the eggdivides into two
D. the eggmoves down into the eggtube
E. the eggmoves down into the womb




CLICK TO VIEW ANSWERS TO OBJECTIVES

SCIENCESectionA

SOLUTIONS

OBJECTIVETEST

1. D. Syphilis

2.
C.
Kidneys, lungs andtheskin

3.
A.
Crop rotation

4.
D.
Talkingwhileeating

5.
B.
2.0 m

6.
E. Cells→tissues → organs→systems

7.
E.
neither becreated nordestroyed, but onlybetransformed

8.
D.
craters

9.
D.
Umbra

10.
D.
water, ammoniumcompounds and oxygen

11.
A.
filtration

12.
E.
CaCO3+2HCl → CaCl2+H2O +CO2

13.
C.
Light

14.
E.
4.00 gcm-3

15.
A.
gases

16.
B.
load

17.
D.
2.0 J

18.
C.
radiation

19.
D.
Activities of earthworms

20. C. rectum

21.
C.
friction

22.
A.
Okro

23.
C.
liquid plasma and solid corpuscles

24.
A.
67%

25.
E.
chemical energy

26.
D.
potential energy

27.
A.
hollow bones

28.
B.
crudeoil

29.
C.
carbondioxide

30.
E.
Tsetse fly

31.
D.
Cassava

32.
D.
fungus

33.
E.
Gill

34.
B.
Ovule

35.
A.
thermal energy

36.
C.
prevent water loss

37.
B.
I andIIonly

38.
A.
small intestines

39.
E.
Lightyears

40.
B.
onlyonesperm fuses with the egg