BECE Past Questions & Answers – 1994 (SCIENCE)

August 1994

SCIENCE

SECTIONA OBJECTIVETEST
45 minutes

1. Which ofthe following substances can existin all thethreestates of matter at 0°C?
A. Petrol
B. Palmoil
C. Milk
D. Alcohol
E. Water

2. Pluto is thedarkest planet becauseit
A. is larger than the sun
B. is thelargest planet
C. is beyond thereach of thesun’s rays
D. is smallerthan thesun
E. falls in thepenumbraregion of an eclipse

3. Inreproduction, the embryocan bereferred to as
A. an ovary
B. a fertileegg
C. a fertilized egg
D. aplacenta
E. amatureovum

4. Which ofthe following statements about secondclass levers is true?
A. Thepivotis between theeffort and theload B. Theload is between the effort and thepivot C. Thereis no pivot
D. Theload is on thepivot
E. The effort is between thepivotand the load

5. Which ofthe followingisnot a communicable disease?
A. smallpox
B. chicken pox
C. influenza
D. pneumonia

E. Tuberculosis

6. When bread is chewed foralongtime, it tastes sweeterbecause it
A. is made from sugarand flour
B. is digested into simplesugar
C. mixes with salivawhich is alkaline
D. is broken into smaller pieces
E. containsyeast which is sweet

7. Which ofthe following gases isnot an air pollutant?
A. cigarettefumes B. carbondioxide C. sulphurdioxide D. exhaust fumes
E. carbonmonoxide

8. Dissolved mineral salts from the soil enter theplant bythe process of
A. phototropism B. transpiration C. diffusion
D. osmosis
E. ingestion

9. Which ofthe following organs is the center oftheCentral Nervous System?
A. Kidney
B. Liver C. Heart D. Brain E. Lung

10. Soilfertilitycan beconserved byallthefollowingmethodsexcept
A. mulching
B. afforestation C. deforestation D. crop rotation
E. green manuring

11. Which ofthe followinginsects is an agent of pollination?
A. Mosquito B. Housefly C. Bee
D. Ant
E. Cockroach

12. Duringthedryseason most trees shed their leavesto

A. protect thetree
B. avoid beingpulled down bystrongwinds
C. conservewaterand nutrients
D. discourageanimals fromeatingtheleaves
E. reducethelossof carbondioxide

13. The chemical formula for sodium chloride
A. Na2Cl B. NaCl C. Sn2Cl D. NaCl2
E. SnCl2

14. Which ofthe followingis the cleanestsourceof drinkingwater?
A. Lake
B. Stagnant water
C. River
D. Deep well
E. Surfacewell

15. The ediblepart ofthe mangofruitis called
A. endocarp
B. drupe
C. fibre
D. mesocarp
E. epicarp

16. Which ofthe followingisnot a characteristicof alllivingorganisms
A. Respiration
B. Reproduction C. Photosynthesis D. Feeding
E. Excretion

17. Which ofthe following conditions in asimple machine will makeworkingdifficult? When
A. Theload distanceis equal to the effort distance
B. The effort distanceis twicethe load distance
C. The effort distanceis threetimes the load distance
D. Small effort moves through alonger distance
E. Theload distanceisgreater than effort distance.

18. A dam forgeneratingpower is constructed acrossa river. What typeofenergyis possessed bythewater behind thedam?
A. Kinetic energy
B. Potential energy

C. Electrical energy
D. Heat energy
E. Light energy

19. Which ofthe followingis a function ofproproots?They
A. Storestarch in theswollenbranch roots
B. Takein air for respiration
C. Hold the plant more firmlyin thesoil
D. Develop into storage roots
E. Develop into fibrous roots

20. Which ofthe followinglivingorganisms isnot areptile?
A. Lizard B. Tortoise C. Frog
D. Snake
E. Crocodile

21. The following aresteps involved in how nutrients in decayingorganicmatter finallyget to man.
I. Themineral in themgo into the soil
II. Mangoes to eat theplantfood
III. Theydissolve in soil water
IV. Theyareusedup byplants during photosynthesis
Which ofthe followingarrangements represents the correct order in whichthe processes occur? A. I,II,III andIV
B. I,III,IV andII C. IV,II,III andI D. II,III,IandIV E. III,IV,IandII

22. Which ofthe followingis the energypossessed byan object placed on atable?
A. Kinetic energy
B. Electrical energy C. Potential energy D. Sound energy
E. Heat energy

23. The changein theshapeofthe moon is causedbythe
A. clouds coveringthe moon surface
B. earth revolving aroundthe sun
C. moon revolvingaroundthe earth D. sun revolving aroundthemoon E. earth rotatingon its axis

24. Themostsensitive region of theeyeto light raysis the
A. retina B. pupil C. cornea D. iris
E. lens

25. Digestion is aprocess bywhichfoodis
A. transported in soluble form within thebodyof animals
B. broken down into tinypieces in themouth
C. moved through thealimentarycanal
D. broken down to produceenergy, waterand carbondioxide
E. broken down into formswhich can be easilyabsorbed

26. Which ofthe following processes isnot aphysical change
A. Dissolution
B. Melting
C. Boiling
D. Evaporation
E. Burning

27. Which ofthe followingis used to measurethe potential differenceacrossaresistor in an electrical circuit?
A. A galvanometer
B. A rheostat
C. A meterbridge
D. A voltmeter
E. An ammeter

28. There arethickforestsin someparts ofthe world because the climatethereis
A. Warm and dry B. Cool and dry C. Hot and dry
D. Cool and wet
E. Hot and wet

29. Which ofthe following practicesencourages soilerosion?
A. Plantingcovercrops
B. Mulching
C. Contour ridging
D. Crop rotation
E. Ploughing alongtheslope

30. A car batteryproduces electrical energyfrom

A. Chemical energy
B. Sound energy C. Kinetic energy D. Heat energy
E. Potential energy

31. Which ofthe following substances isnot foundin the excretoryproductsofman?
A. Ammonium salt
B. Common salt
C. Glucose
D. Water
E. Carbondioxide

32. Which ofthe following processescan beused toobtain local gin from palm wine?
A. Evaporation B. Condensation C. Distillation
D. Filtration
E. Sublimation

33. Thelinear sequenceof livingthingsfeeding and beingfed on is called
A. linear feeding
B. food chain
C. photosynthesis
D. nutrition
E. transpiration

34. Which ofthe following organisms causes malaria?
A. Tsetsefly
B. Fungi
C. Virus
D. Plasmodium
E. Bacteria

35. Themale andfemalesexcells of aplant arerespectivelyin the
A. Sperm and egg
B. Pollen grain and ovary
C. Sperm and ovary D. Ovaryand ovule E. Embryoand seed

36. Which ofthe following preventivemeasures isnot usedin the control of tuberculosis?
A. Isolatingthe patient
B. Spittingcarelesslyin theenvironment
C. Keepingseparatecutlery,plates, cups forthe patient

D. Vaccinatingyoungbabies with BCG vaccine
E. Spittinginto a containerpartlyfilled with disinfectant

37. During an eclipse of thesun, the region that has total darkness is known as
A. umbra
B. orbit
C. penumbra
D. shadow
E. satellite

38. Animals that live in grasslands include
A. lions and giraffes
B. monkeysand tigers
C. antelopes andhares
D. woodpeckers and baboons
E. elephants and leopards

39. Which ofthe following areproducts of respiration?
A. Glucose and oxygen
B. Waste food, energyand carbondioxide
C. Energy, carbon dioxide and water
D. Energy, oxygenand water
E. Carbondioxide and oxygen

40. Which ofthe followinglivingthings hideduringthesunnydays in order toconservewaterin its body?
A. Rat
B. Lizard
C. Butterfly
D. Toad
E. Bat





CLICK TO VIEW ANSWERS TO OBJECTIVES

August 1994

SCIENCESectionA

SOLUTIONS

OBJECTIVETEST

1. E. Water

2.
C.
is beyond thereach of thesun’s rays

3.
C.
a fertilized egg

4.
B.
Theload is between the effort and thepivot

5.
D.
pneumonia

6.
B.
is digested into simplesugar

7.
B.
carbondioxide

8.
C.
diffusion

9.
D.
Brain

10.
C.
deforestation

11.
C.
Bee

12.
C.
conservewaterand nutrients

13.
B.
NaCl

14.
D.
Deep well

15.
D.
mesocarp

16.
C.
Photosynthesis

17.
E.
Theload distanceisgreater than effort distance.

18.
B.
Potential energy

19.
C.
Hold the plant more firmlyin thesoil

20. C. Frog

21.
B.
I,III,IV andII

22.
C.
Potential energy

23.
C.
moon revolvingaroundthe earth

24.
A.
retina

25.
E.
broken down into formswhich can be easilyabsorbed

26.
E.
Burning

27.
D.
A voltmeter

28.
E.
Hot and wet

29.
E.
Ploughing alongtheslope

30.
A.
Chemical energy

31.
C.
Glucose

32.
C.
Distillation

33.
B.
food chain

34.
D.
Plasmodium

35.
B.
Pollen grain and ovary

36.
B.
Spittingcarelesslyin theenvironment

37.
A.
umbra

38.
C.
antelopes andhares

39.
C.
Energy, carbondioxide and water

40.
D.
Toad