Fast Printing Dec 2025 Science
Fast Printing Dec 2025 Science - Paper 1 - Objective Test Instructions
Answer all the questions. Each question is followed by four options lettered A to D. Find the correct option for each question and shade in pencil on your answer sheet the answer space which bears the same letter as the option you have chosen. Give only one answer to each question.
Question 1
The diagram below shows an empty plastic bottle closed with an airtight stopper being pushed down into a bucket filled with water. As the bottle is pushed down, it experienced an upward push. This upward push is called
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Question 2
The diagram below shows an empty plastic bottle closed with an airtight stopper being pushed down into a bucket filled with water. As the bottle is pushed further down, it experiences an increasing upward push. This is because
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Question 3
Which of the following is a biodegradable waste?
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Question 4
Which of the following cells is likely to have the most mitochondria?
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Question 5
An example of a root vegetable crop is
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Question 6
Why are fossil fuels non-renewable despite still forming today?
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Question 7
Substances which can be broken down biologically by bacteria are said to be
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Question 8
The role decomposers play in the carbon cycle is that they
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Question 9
Which of the following methods of controlling soil erosion is best suited for steep slopes?
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Question 10
Which of the following processes is not a method of heat transfer?
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Question 11
A 2 kg object is lifted vertically at a constant speed of 3 m/s for 5 s. The work done against gravity is
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Question 12
Which of the following elements is a noble gas?
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Question 13
The larval stage of mosquito is also called
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Question 14
A poultry housing method where birds are raised on a floor covered with a thick layer of wood shavings or sawdust is called the
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Question 15
The atomic number of an element is determined by the number of
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Question 16
Which of the following devices is not a simple machine?
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Question 17
The rhythmic contractions that move food through the digestive tract is called
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Question 18
West African Dwarf (WAD) is a breed of
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Question 19
Two balloons of same size were tied to one end of two glass tubes of same diameter. Water was poured to different heights in the two tubes. The results are shown in the diagram. The results show that the size of the bulge in the balloon
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Question 20
Two balloons of same size were tied to one end of two glass tubes of same diameter. Water was poured to different heights in the two tubes. The results are shown in the diagram. The best explanation of the result is that the pressure exerted by water at the bottom of the container depends on the
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Question 21
Chemical formula of a compound indicates the
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Question 22
In man the organ that prevents food from entering the trachea during swallowing is
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Question 23
Which of the following fertilizers is derived from animal waste and plant refuse?
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Question 24
Alida runs her toy car on a dry marble floor, wet marble floor, newspaper and towel spread on the floor. The force of friction acting on the car on different surfaces in increasing order will be
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Question 25
The sub-atomic particle with negligible mass is the
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Question 26
The hygrometer is an instrument used in determining
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Question 27
Which of the following devices converts sound energy to electrical energy?
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Question 28
How many atoms are present in Ca(HCO₃)₂?
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Question 29
Which of the following sequences show the correct order of increasing complexity of life?
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Question 30
The main source of carbohydrates in livestock feed is
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Question 31
When lightning and thunder take place, they
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Question 32
Elements that could easily gain electrons to form anions are
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Question 33
The disease in humans associated with insufficient intake of iodine is
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Question 34
The key advantage of crop rotation is that it
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Question 35
Which of the following heavenly body is not a member of the solar system?
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Question 36
Rainbow is formed by
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Question 37
Which of the following pairs of diseases are spread by houseflies?
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Question 38
Leguminous crops are used in crop rotation to add
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Question 39
Which of the following electronic components opposes changes in current in a circuit?
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Question 40
The primary function of a transistor is to
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Question 41
The figure shows three types of teeth in humans labelled A, B and C. Tooth A has two parts labelled I and II. Copy and complete the table for teeth A, B and C.
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Question 42
The figure shows Tooth A and Tooth B. Tabulate two observable differences in the structure of tooth A and tooth B.
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Question 43
The figure shows Tooth A and Tooth B. Tabulate two observable differences in the structure of tooth A and tooth B.
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Question 44
The figure shows an illustration of a device used for regulating modes of heat transfer. The device has parts labelled I, II, III and IV, with a vacuum seal, metal casing, and hot water visible. Name the device illustrated in the Figure.
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Question 45
The figure shows a vacuum flask with parts labelled I, II, III and IV. Name the parts labelled I, II, III and IV.
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Question 46
The figure shows a vacuum flask. Name the three heat transfer processes that this device prevents.
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Question 47
The figure shows a vacuum flask with parts II and IV labelled. State the function of:
(a) Part II
(b) Part IV
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Question 48
The figure shows a crop rotation plan for a 3-year cycle. A farmer is supplied with three crops: carrot, oats and cowpea, to be planted in three beds. In Year 1: Bed 1 = Oats, Bed 2 = Cowpea, Bed 3 = Carrot.
What type of crop is:
(a) carrot?
(b) oats?
(c) cowpea?
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Question 49
State three advantages of crop rotation as a system of farming.
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Question 50
The figure shows a crop rotation plan. Year 1 is already completed as follows: Bed 1 = Oats, Bed 2 = Cowpea, Bed 3 = Carrot. Produce two different crop rotation plans by completing the rotation for Year 2 and Year 3.
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Question 51
The table below shows information on three chemical elements labelled A, B and C.
i. Copy and complete the table by providing all missing information including: number of electrons, number of neutrons, atomic number, mass number, period and group for each element.
ii. Giving a reason, state which of the elements is a ;
a. Cation
b. Anion
C. Atoms
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Question 52
Using the elements A, B and C from the table (Element A has 13 protons, Element B has 17 protons and 35 mass number, Element C has 12 protons), and giving a reason in each case, state which of the elements is:
(a) a cation?
(b) an anion?
(c) an atom?
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Question 53
Name the four stomach chambers of ruminants and state the function of each chamber.
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Question 54
Explain each of the following observations using principles of states of matter:
(a) ice floats on water
(b) the smell of hot food travels farther than cold food
(c) a balloon deflates in cold weather
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Question 55
Describe how each of the following human activities affects the water cycle:
(a) construction of concrete surfaces
(b) deforestation
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Question 56
(a) What is potable water?
(b) Name three methods of separation of mixtures that can be used to obtain potable water from a muddy pond.
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Question 57
Give four reasons why farmers might choose inorganic fertilizers over organic ones despite the latter's environmental benefits.
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Question 58
Explain the difference between:
(a) major nutrients and minor nutrients
(b) compound fertilizer and straight fertilizer
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Question 59
A small toy car of mass 2 kg is at the top of a ramp. The top of the ramp is 0.5 metres high. [g = 10 m/s²]
(a) Determine the car's potential energy at the top of the ramp.
(b) When the car rolls down the ramp, it reaches a velocity of 3 m/s at the bottom. Calculate its kinetic energy at the bottom of the ramp.
(c) Compare the answers for (a) and (b) and state whether the two are the same or not.
(d) Give a reason for the answer at (c).
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Question 60
Describe a simple experiment using a flashlight to test whether a given mixture is a colloid or a solution.
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Question 61
(a) What are domestic animals?
(b) Tabulate three differences between domestic and wild animals.
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Question 62
(a) What is:
(i) a galaxy?
(ii) a milky way?
(b) State two characteristics that distinguish the inner planets from the outer planets.
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Question 63
Give three reasons to justify the statement that 'A mangrove swamp is a combination of terrestrial, aquatic and arboreal ecosystem.'
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Question 64
(a) What name is given to the following arrangements of elements on the periodic table?
(i) rows
(ii) columns
(b) State the information that each of the arrangements named in (a) gives about the structure of atoms of the elements.
(c) State the position of the following groups of elements on the periodic table:
(i) metals
(ii) non-metals
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Question 65
(a) Name three classes of domestic animals based on their uses.
(b) Give one example of a domestic animal in each class named in (a).
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Question 66
(a) Name the accessory digestive organs of man.
(b) State the digestive function of each of the accessory digestive organs named in (a).
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Question 67
Using a triangular glass prism, a white screen, and sunlight, describe an experiment to show that sunlight is made up of seven colours.
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Question 68
(a) Distinguish between suspension and colloid.
(b) Classify each of the following mixtures as either a colloid or a suspension:
(i) muddy water
(ii) milk
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