SCIENCE TRIAL QUESTIONS FOR BECE /WASSCE

      BECE likely EXAMINATION Questions _2023
 Contact this line for more questions & answers 0576624481

SUBJECT: INTEGRATED SCIENCE … DURATION: ……2HOURS…..………
PAPER 1

OBECTIVE TEST
 Answer all Questions.
1. Which of the following human activities maintain the carbon cycle?
A. Bush burning
B. Felling of trees
C. Release of fumes from factories
D. Replanting of trees felled as timber

2What is the colour of the neutral wire in a three-pin plug?
A. Blue
B. Brown
C. Green
D. Yellow

3. The number of elements in the compound Ca(OH)2  is 
A. 2
B. 3
C. 4
D. 5
4. One difference between metals and non-metals is that metals
A. Have low density
B. Are not malleable
C. Have luster
D. Have low melting points

5. A mixture of sugar and water could be separated by 
A. Decantation
B. Evaporation
C. Filtration
D. Sublimation

6. Which of the following agencies is responsible for providing information on the weather and climate conditions of an area?
A. Animal husbandry department
B. Extension services department
 C. Information services department
D. Meteorological services department

7. Day and night occur because the earth 
A. Moves around the sun
B. Moves from east to west 
C. Moves round the moon
D. Rotate on its axis

8. An atom of an element is represented as  
A. 13
B. 14
C. 27
D. 40
9. The dissolution of sugar in water is a physical change because the sugar 
A. Cannot be seen in water
B. Cannot be separated from the water
C. Can be separated from the water
D. Can be tested in the water

10. The systematic name of the compound FeS is
A. Iron (I) sulphide 
B. Iron (II) sulphide 
C. Iron (III) sulphide 
D. Iron (IV) sulphide 

11. A metal block has a mass of 0.1kg. Calculate its volume if the density is  1.0kgm-3
A . 0.01m3
B. 0.01m-3
C. 1.00m3
D. 10.00m3
 

12. Why of the following processes are conversion of the state of matter is correct?
A. Gas_liquid _solid
B. Solid_ gas _liquid
C. Solid _liquid_gas
D. Gas_liquid_solid 

13. Which of the following gases is involved in the rusting of iron? 
A. Oxygen
B. Hydrogen
C. Nitrogen
D. Carbon dioxide

14. Metals that are used to make ornaments have low
A. Conductivity
B. Ductility
C. Malleability
D. Reactivity

15. The charge of Sulphur in the compound SO2 is 
A. -2
B. +2
C. -4
D. +4

16. Which of the following substances is a solid – gas mixture?
A. Lather
B. Bronze
C. Steel
D. Smoke 

17. Which of the following compounds does not contain carbon?
A. Petrol
B. Palm oil
C. Water
D. Alcohol

18. Which of the following properties are true about all matter except 
Matter has
A. Volume and fixed shape
B. Volume and mass
C. Mass and indefinite 
D. Density and fixed shape

19. A metal that is used as thermometric liquid is
A. Aluminum
B. Copper
C. Mercury
D. Silver

20. The instrument used to measure temperature is the 
A. Thermometer
B. Barometer
C. Manometer
D. Ammeter

21. A positively charged ion is called 
A. Anion
B. Cation
C. Neutron
D. Proton

22. How many days does it take the moon to go completely round the earth
A. 1 day
B. 28 days
C. 30 days
D. 356 days

23. In electrical circuits, the components that protects appliances against very high current is the 
A. Capacitor
B. Fuse
C. Resistor
D. Switch

24. The chemical formula for Aluminum oxide is represented as Alx Oy. The values of x and y are respectively
A. 2 and 3
B. 1 and 3
C. 3 and 1
D. 3 and 2

25. The method of purification of water that produces water containing very little impurities is 
A. Boiling
B. Chlorination
C. Distillation
D. Filtration 

26. Crystals of sugar where obtained when a hot solution of sugar was cooled to room temperature. What conclusion can be drawn from this observation?
A. Sugar does not dissolve in cold water
B. Sugar does not dissolve in hot water
C. Sugar dissolves less in hot water than cold water
D. Sugar dissolves more in hot water than cold water

27. If a mixture of water and powdered charcoal is allowed to stand for a long time, the charcoal
A. rises to the top 
B. dissolves completely in the water
C. continues to remain suspended in the water
D. settles at the bottom

28. When elements combine to form a compound,

A.  the Constituents can be separated by a physical process
B. volume of the compound is the sum of the volumes of the constituents
C. reaction can be represented by a chemical
D. reaction does not involve a heat change

29. Which of the following statements about the scientific method is/are correct? It provides
I. Logical procedure for arriving at a knowledge
II. Knowledge that can be verified
III. Knowledge that can never be changed
A. I and II
B. I only
C. I and III only
D. II and III only 

30. The joule is the S.I. unit for 
A. energy
B. force
C. power
D. pressure 

31. Which of the following elements is a semi-metal? 
A. carbon
B. nitrogen
C. silicon
D. sodium

32. Solid non – metals normally break into pieces when hammered because they are
A. brittle
B. ductile
C. lustrous
D. malleable

33. Elements that could easily lose electrons to form cations are 
A. metals
B. non – metals
C. metalloids
D. noble gases

34. Which of the following processes involve a change in state of matter form liquid to solid
A. evaporation
B. freezing
C. melting
D. sublimation

35. The sub – atomic particle with zero charge in the nucleus of an atom is called 
A. proton
B. ion
C. electron
D. neutron

36. The importance of fuse in an electrical circuit is to 

A. regulate the voltage
B. minimize the use of current
C. prevent damage to electrical appliances
D. alter the flow of current in the current

37. An example of chemical compound is
A.aluminum
B. ammonia
C. oxygen
D. silicon

38. When a solid – liquid mixture is filtered, the liquid that separates out into the container is called
A. filtrate
B. residue
C. sediment
D. solution

39. In which of the following processes is carbon absorbed from the atmosphere?
A. respiration
B. burning
C. decomposition
D. photosynthesis

40. Which of the following statements is not true about the wet seasons? 
Bush fires are common
Trees and weeds grow fast
Small animals increase in number
The weather is generally cool 

SECTION A
40 MARKS
Answer question all Questions in this section.

1. a. The diagram below is an illustration of an experimental setup for separating a mixture of water and alcohol. Study the diagram carefully and answer the questions that follow.

A. State the method of separation shown in the setup above                           (1 mark)
B. Identify the parts labeled I, II, III, IV and IV                                                    
C. Give the function of II and III                      
D. What physical processes are involved in the method of separating                              (2 marks)
 E. State the physical property which makes it possible to separate the water and alcohol. (2 marks)
F. State three physical characteristics of 

 part labeled IV                                                  
 b. The diagrams below are illustrations of some farm tools. Study them carefully and use them to answer the questions that follow:           
                           

                                             
A. Identify each of the tools labelled A, B, C, D and E.       (5marks)
B. State one use of each of the  tools                                     (5marks)
C. Describe briefly how tool A is used                                  (2marks)
D. Give three ways of maintaining farming tools                   (3 marks)  

b. Study the diagram below carefully and answer the questions that below:
     

 
 
 A. Name the organ above                                      (1mark)
B. Identify the parts labeled I, II, III, IV and V    (5marks)
C. Name one function of the parts II, III, IV and V (4marks)
                 

SECTION B
(60 Marks)
Answer four questions only from this section

Q2. a. Write the systematic name for each of the following compounds
H2O
MgO
CaO
CaCl2 (4marks)
b. Name the instrument used in measuring the following 
I. Length of a rope
Ii. Mass of a stone
Iii. Temperature of a liquid
Iv. Volume of a liquid (4 marks)
C. i. Differentiate between solute and solvent (3 marks)
d. i. State four stages in the carbon cycle (4 marks)
3. a. i. define an alloy. (2 mark)
   ii. State the composition of each of the following alloys:
Brass
Steel
Bronze            (3 marks)
b. i. Explain the term soil profile (2 marks)
    ii. State three importance of studying the soil profile (3 marks)
c. i. Name five weather measuring instruments (2 marks)   
4. State one principles of crop rotation                                                                                  (4 marks)
b. Mention the suitable solvent for each of the following solutes
Grease
Ink stain
chlorophyll                                      (3 marks)
d. i. Define the following terms
. Atom
. Elements
. Compounds
. Mixtures                                     (8 marks)
5. In an experiment to demonstrate the reactivity of sodium, a piece of the metal was dropped into a test tube containing water. Study the setup carefully and answer the questions that follow:

a. Write a word equation for the                                                              (3marks)
b. Name the gas involved                                                                         (2marks)
. List two other metals that react in a similar way as the sodium       (2marks)
d. Name the three sub – atomic particles                                                  (3marks)
e. List the first ten elements on the periodic table                                     (5 marks)
6. a. i. Define valency.          (2 mark)
ii. State the valences of the following elements and radicals:
. Iron
. Zinc
. Hydroxyle
. Carbonate (4 marks)
b. i. balance the following chemical equations
          i. N2 + H2 NH3
         ii. CaCO3 + HCl CaCl2 + CO2 + H2O
         iii. Ca(OH)2 + HCl CaCl2 + 2 H2O (6 marks)
iii. Complete the four-year rotational program for the table below:
Year / plot
Plot 1
Plot 2
Plot 3
Plot 4
1st year
Yam
C
Tomato
G
2nd year
Cowpea
Tomato
E
Yam
3rd year
A
Maize
F
Cowpea
4th year
B
D
Cowpea
H
(3 marks)