BECE Past Questions & Answers – 1995 (SCIENCE)

August 1995

SCIENCE

SECTIONA OBJECTIVETEST
45 minutes

1. Which ofthe following activities doesnot causesoilerosion?
A. Clearingof vegetation
B. Bush burning C. Heavyrainfall D. Overgrazing E. Crop rotation

2. What is the differencebetween massand weight?The
A. mass ofabodyis twicetheweight
B. weight ofabodyis constant butits mass varies
C. mass ofabodyvaries but its weight does not D. weight ofabodyvaries but its mass does not E. mass ofabodyis half theweight

3. Bywhat process is heat transferredfrom thebottom of abeaker containing waterto thetop?
A. convection B. conduction C. radiation
D. absorption
E. transmission

4. Inwhat units arework and energymeasured?
A. work in joules, energyinwatts
B. work in joules, energyinjoules
C. work in newtons,energyin joules
D. energyin watts, work in watts
E. energyin newtons, workin joules

5. Which ofthe followingis the organic part ofthe soil?
A. Mineral salts
B. Water
C. Rock particles
D. Air

E. Humus

6. A mixtureof sugarandwatercan beseparated by
A. Filtration
B. Evaporation C. Decantation D. Distillation
E. Condensation

7. The air pressureat greatheights can bemeasuredwith
A. A thermometer B. An anemometer C. A barometer
D. A hydrometer
E. A hygrometer

8. Which ofthe following animals reproduces without mating?
A. Toad B. Lizard C. Dog
D. Man
E. Amoeba

9. Which ofthe following environmental factors can cause thefastest rateofwaterlossfrom leaf surfaces?
A. High humidity
B. Wet wing
C. Stillair
D. Low temperature
E. Dryair

10. A fruit adaptedfordispersal bywind is likelyto be
A. succulent
B. brightlycoloured
C. hooked D. sticky E. hairy

11. All the followingsubstances aremixtures except
A. ink
B. blood
C. air
D. palmwine
E. carbondioxide

12. Ina first class lever, theload is placed

A. on the effort
B. between theeffort arm and the pivot
C. at one end ofthe load arm
D. between the pivot and theload arm
E. on the pivot

13. Excretion in animals involves the removal of
A. waterfrom the body
B. urine and faeces from thebody
C. blood from thebody
D. waste materials from thebodycells
E. undigestedfoodfrom thebody

14. Which ofthe followingis an indirect sourceof light?
A. Torch light
B. Thesun
C. Fire
D. Themoon
E. Candle flame

15. Which ofthe followingis the sense organforsight?
A. Skin B. nose C. eye D. ear
E. tongue

16. Liquids suitable forusein thermometers must not: A. wet glass
B. havealow boilingpoint
C. haveahigh meltingpoint
D. haveahigh density
E. expand

17. When livingorganisms die, the mineral saltsin their bodies become available to the soil through the process of
A. evaporation
B. sedimentation
C. defecation
D. decay
E. osmosis

18. Ice floats on waterbecause
A. wateris denser than ice
B. iceis denser thanwater

C. icehas the sametemperature as water D. icehas a lower temperaturethan water E. iceis different from water

19. The reason for chewing foodbeforeswallowingis to
A. soften the food
B. makedigestion faster
C. cause salivato flow out
D. exercise thejaws
E. makethe teeth strong

20. Power is definedas the
A. abilityto do work
B. amountof energy
C. rate ofdistance covered
D. rate ofdoingwork
E. easeof movingaheavyobject

21. The forcewhich is ableto hold light objects on the surfaceof liquids is called
A. surfacetension
B. friction
C. capillarity D. viscosity E. cohesion

22. In the nucleus ofan atom, thereare
A. neutrons and shells
B. protons and electrons C. neutrons and protons D. electrons and shells
E. electrons and neutrons

23. Themalesperms fertilizethe femaleeggs to formthe
A. embryo B. ovary C. ovum
D. placenta
E. uterus

24. Mostplants will notdowellin thedesert because
A. thereis no top soil B. itis too sunnythere C. rainfallis verypoor
D. the speed of wind ishigh
E. the gullies aretoo deep forplant cultivation

25. What is the work donewhen agirl lifts a pot ofwaterweighing40N upward through adistanceof1 m?
A. 400.0 J B. 40.0 J C. 4.0 J
D. 1.0 J E. 0.4 J

26. Which ofthe followingisnot characteristic ofalllivingorganisms?The abilityto
A. break downfoodto obtain energy
B. produce food usingthe sun’s energy
C. makeuse of food nutrients to grow
D. respond to changes within the environment
E. give risetoyoungnew individuals

27. Theprocess used ingettingsalt from seawateris
A. boiling
B. condensation
C. decantation
D. sedimentation
E. evaporation

28. Which ofthe following bodies is a satellite oftheearth?
A. Mars
B. Sun
C. Venus
D. Moon
E. Mercury

29. Which ofthe following aresoil micro-organisms?
A. Termites B. Viruses C. Ticks
D. Bacteria
E. Crabs

30. Thedarkest part of ashadow formed when alargesourceof light is used is the
A. Partial eclipse B. Lunar eclipse C. night
D. penumbra
E. umbra

31. Thepart ofair which supports burningis
A. nitrogen

B. inert gas
C. watervapour
D. oxygen
E. carbondioxide

32. What structurelinks themouth with thestomach?The
A. duodenum B. oesophagus C. Ileum
D. trachea
E. colon

33. Which ofthe followinginstruments is used in measuring current in an electric circuit?
A. Voltmeter B. Ammeter C. Barometer
D. Thermometer
E. Anemometer

34. There arethickforestsin part ofthe world wherethe climateis
A. Hot and wet B. cool and wet C. hot and dry D. cool and dry
E. warm and dry

35. Theouterear is also referred to as
A. cochlea
B. tympanum
C. pinna
D. incus
E. malleus

36. Gin can beobtained from palm wine by
A. condensation
B. freezing
C. sedimentation
D. distillation
E. filtration

37. Which ofthe followingis likelyto happen when the relative humidityis high?
A. It is likelyto rain
B. It is likelyto be dry
C. It is likelyto be sunny
D. Thedaywillbehot

E. It will be windy

38. Which ofthe followingfeatures iscommon to both the fish and thelizard? Thepossession of
A. astickytongue
B. alateral line system
C. dorsal fins
D. clawed digits
E. scales on thebody

39. Which ofthe following statements about thesolar system is true?The
A. sun moves round the earth
B. planets move round the sun
C. planets move round themoon
D. sun moves in its orbit
E. sun moves round themoon

40. What typeof fruit isamango?
A. Drupe B. Pepo C. Berry
D. Caryopsis
E. Pome

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