1.
The food we eat undergoes slow oxidation in our bodies to produce heat. In this process
chemical energy is converted to heat energy
electrical energy is converted to heat energy
kinetic energy is converted to heat energy
mechanical energy is converted to heat energy
Answer: A
2.
The dry season in Ghana is mainly from
January to March
April to June
July to September
October to December
Answer: A
The dry season is the period where there is very little or no rainfall. In the southern part of Ghana, the dry season occurs between November to February. The period is much longer in the Northern part which occurs between November to June.
3.
Soil aeration can be improved by
Adding mineral to the soil
Application of fertilizer to the soil
Weathering
Activities of earthworms
Manuring
Answer: D
4.
Which of the following step(s) is/are required in the scientific method?
I. Formulation of hypothesis
II. Identification of the problem
III. Experimentation
I only
II only
II and III only
I, II and III
Answer: D
5.
The simplest way of making well water suitable for laundry is by
adding copper sulphate.
filtering.
boiling .
adding chlorine.
Answer: C
6.
Which of the following planets are closer to the sun than the Earth?
Venus and Mars
Venus and Mercury
Mercury and Mars
Venus and Saturn
Answer: B
Venus and Mercury are more closer to the sun, Mars & Saturn are far away from the sun but more closer to the Earth

7.
The presence of chlorophyll in green plants is a necessary condition for photosynthesis because it
absorbs oxygen.
absorbs solar energy.
produces carbon dioxide.
produces water vapour.
Answer: B
8.
Which of the following subjects is/are considered as applied science?
I. Biology
II. Medicine
III. Psychology
I only
I and II only
I and III only
II and III
Answer: D
9.
Which of the following practices is not a principle of crop rotation?
Legumes should be added to the rotation programme.
Deep rooted crops should be followed by shallow rooted crops.
Crops that are closely related should follow each other.
Fallow period should be allowed during the time of rotation.
Answer: C
10.
The angle between an incident ray and a reflecting surface is 20o. Determine the angle of reflection.
60o
70o
90o
110o
Answer: B

20o + i = 90o
i = r
Where i= angle of incidence and r = angle of reflection.
20o + i = 90o
i = 90 - 20
i = 70o
i = r = 70o
11.
The central nervous system consists of the
spinal cord and spine.
brain and the nerves.
brain and the spinal cord.
skeletal system and skull.
Answer: C
12.
The eclipse of the moon occurs when the
moon and the sun are in a straight line
earth and the sun are in a straight line
sun is between the earth and the moon
earth is between the sun and the moon
moon comes between the sun and the earth
Answer: D
13.
Which of the following statements about plants is true?
I. Most plants show movement
II. Green plants manufacture their own food
III. All animals depend directly on plants for food
I only
II only
III only
I and II only
II and III only
Answer: B
14.
Which of the following activities is a reflex action?
Eating
Fighting
Learning
Sneezing
Writing
Answer: D
Reflex action is a sudden and involuntary response to stimuli. It helps organisms to quickly adapt to an adverse circumstance that could have the potential to cause bodily harm or even death. Pulling our hands away immediately after touching a hot or cold object is a classic example of a reflex action.
15.
A beak and claws are protective structures of a
crab.
hawk.
lion.
snake.
Answer: B
16.
Which of the following processes is used to separate insoluble solids from liquids?
Distillation
Sublimation
Filtration
Evaporation
Answer: C
17.
Animals depend on plants for food because
animals do not need to drink water.
only plants can make their food from simple substances.
only plant food can satisfy animals.
plants are available everywhere.
Answer: B
18.
Which of the following fruits is dispersed by water?
Coconut
Mango
Maize
Cocoa
Answer: A
Coconut is dispersed by water
Lighter and hollow seeds like that of coconut and lotus can float in water and travel long distances in this manner.
19.
A mercury thermometer works on the principle that
solids expand on heating and contract on cooling.
liquids expand on heating and contract on cooling.
gases expand on heating and contract on cooling.
liquids evaporate when heated to a certain temperature.
Answer: B
20.
A ray of light is incident at an angle of 30° to the surface of a plane mirror. Calculate the angle of reflection.
30°
60°
90°
120°
180°
Answer: B
Angle of incidence = Angle of reflection
Angle to the surface of a plane mirror + angle of incidence = 90°
30° + angle of incidence = 90°
Angle of incidence = 90° - 30° = 60°
Angle of reflection = 60°
21.
Stem cutting is used in propagating cassava because it
gives rise to roots and leaves
stores food in the stem
gives rise to big tubers
gives rise to small tubers
Answer: A
22.
The human male sex cell that takes part in reproduction is the
penis
scrotum
sperm
testis
Answer: C
23.
An example of a storage pest is
yam beetle.
capsid.
army worm.
weevil.
Answer: D
A storage pest is an insect or other animal that damages or destroys stored food or other stored valuable organic matter.
Grain borers, weevils and Angoumois grain moths are able to feed on whole, healthy grains, they are considered storage pests
24.
The use of resistant breeds of farm animals to control pests is a
biological method.
chemical method.
cultural method.
physical method.
Answer: A
25.
Which of the following methods of preserving food make use of heat energy?
I. Drying
II. Frying
III. Salting
IV. Canning
I and II only
I and IV only
III and IV only
I, II and III only
Answer: D
26.
An example of a derived quantity is
length
mass
temperature
volume
Answer: D
27.
The measure of the amount of water vapour in the air is known as
cloud.
dew.
humidity.
temperature.
Answer: C
28.
By the end of digestion, lean meat is turned into
amino acids
fatty acids
glycerol
glucose
Answer: A
29.
A non-reactive metal can be identified from other metals because its surface is
hard.
shiny.
smooth.
rough.
Answer: B
30.
Which of the following sources of energy is/are renewable?
I. Wind
II. Coal
III. Crude oil
I only
I and II only
II and III only
I,II and III
Answer: A
Renewable Energy
Renewable energy is defined as energy that is produced by natural resources—such as sunlight, wind, rain, waves, tides, and geothermal heat—that are naturally replenished within a time span of a few years.
A renewable energy source means energy that is sustainable - something that can't run out, or is endless, like the sun.
Sources of Renewable Energy
1. Solar energy
2. Wind energy
3. Hydro energy
4. Tidal energy
5. Geothermal energy
6. Biomass energy
31.
An omnivore is an animal that feeds on
raw food.
fresh foods.
cooked foods.
all kinds of food.
Answer: D
32.
The characteristics of a fertile soil include good
I. aeration,
II. texture,
III. water-holding capacity.
I only
I and II only
II and III only
I, II and III
Answer: D
33.
The bad smell that comes out of a urinal is due to the presence of
ammonia.
hydrogen.
carbon dioxide.
nitrogen.
Answer: A
Ammonia has a very strong odor that is irritating.
34.
Which of the following compounds is neutral to litmus paper?
HCL
H2O
NaOH
KOH
Answer: B
35.
The male and female sex cells of a plant are respectively in the
Sperm and egg
Pollen grain and ovary
Sperm and ovary
Ovary and ovule
Answer: B
36.
Plants are different from animals because they
have protoplasm
have chlorophyll
are able to respire
are able to reproduce sexually
Answer: B
37.
Which of the following life activities are common to both plants and animals?
I. Feeding
II. Locomotion
III. Respiration
I and II only
I and III only
II and III only
I, II and III
Answer: B
38.
An unripe orange is said to be acidic because it
has low sugar content.
has bitter taste.
turns red litmus paper blue.
turns blue litmus paper red.
Answer: D
Acid turns blue litmus paper red. You can use the acronym BAR to remember which stands for Blue Acid Red where B stands for Blue litmus paper and A stands for Acid and R stands for Red.
Once you know that of the acid when you remember BAR, you can reverse it for the base. For a base or alkaline, red litmus paper turns blue.
39.
The process by which metabolic wastes are removed from the body is called
respiration
excretion
egestion
Answer: B
Excretion involves the separation and elimination of metabolic waste products from the body. Various organs are involved in this process: the lungs, gills, skin, etc. The kidneys and their ducts are the major full-time excretory organs and comprise the excretory system.
40.
Which of the following effects is not a result of illegal connection of electricity?
It can
lead to fire outbreak
lead to frequent power cut-off
increase the flow of current in the supply chain
cause damage to electrical appliance
Answer: C
(a)
Mention five differences between plants and animals.
(b)
Define each of the following terms, giving one example in each case:
(i)
Compound;
(ii)
Element.
(c)
(i)
Give two differences between an electrical insulator and a conductor.
(ii)
Draw and label a simple electrical circuit made up of a cell and a switch connected to two electric bulbs connected in parallel.
(a)
Differences between plants and animals
| Plants | Animals |
| Respond slowly to stimuli | Respond quickly to stimuli |
| Autotrophic/manufacture their own food from simple inorganic materials | Heterotrophic/do not manufacture their own food |
| Level of coordination is less than in animals due to absence of complex nervous system | Have complex nervous system which is responsible for their ability to exhibit complex behaviour |
| Do not move from place to place | Move freely from place to place |
| Cells possess large and permanent vacuoles/Large vacuole | Cells possess small and temporary vacuoles |
| Cells possess chloroplasts that contain chlorophyll | Cells have no chloroplasts |
| Excess carbohydrates are stored as starch | Excess carbohydrates in cells are stored as glycogen |
| Take in carbon dioxide to prepare food and release oxygen into the atmosphere | Take in oxygen and release carbon dioxide into the atmosphere |
| Cells have cell wall | Cells have no cell wall |
| Have cellulose | Have no cellulose |
| Growth takes place at definite regions/growth is localized | Growth takes place in all body parts |
| Waste products are stored and used by plants | Animal by-products are toxic/poisonous to cell and must be excreted |
(b)
(i)
A compound is a substance which contains two or more elements chemically combined and cannot be separated by any physical method.
Examples of compounds
1. Water/H2O
2. Common salt/Sodium chloride/NaCl
3. Carbon dioxide/CO2
4. Ammonia/NH3
5. Cupric oxide/Copper (II) oxide/CuO
6. Sulphuric acid/H2SO4
7. Sodium hydroxide/NaOH
8. Ammonium chloride/NH4Cl
9. Hydrochloric acid/HCl
10. Copper (II) sulphate/Copper (II) tetraoxosulphate (VI)/CuSO4
11. Iron (II) chloride/FeCl3
12. Magnesium chloride /MgCl2
13. Iron (II) sulphide/FeS
14. Ammonium hydroxide/NH4OH
15. Calcium carbonate/Carbon (IV) oxide/CaCO3
16. Calcium chloride/CaCl2
17. Silver chloride/AgCl
18. Sodium tetraoxosulphate (VI)/Na2SO4
19. Sodium nitrate/Sodium trioxonitrate (V)/NaNO3
20. Potassium sulphate/Potassium tetraoxosulphate (VI)/K2SO4
(ii)
An element is a pure substance made up of atoms of the same kind.
OR
An element is chemically a simplest substance that cannot be broken down into any simpler form by any known chemical means.
Examples of elements (First 20 elements)
| Atomic Number | Element | Symbol |
| 1 | Hydrogen | H |
| 2 | Helium | He |
| 3 | Lithium | Li |
| 4 | Beryllium | Be |
| 5 | Boron | B |
| 6 | Carbon | C |
| 7 | Nitrogen | N |
| 8 | Oxygen | O |
| 9 | Fluorine | F |
| 10 | Neon | Ne |
| 11 | Sodium | Na |
| 12 | Magnesium | Mg |
| 13 | Aluminium | Al |
| 14 | Si | Silicon |
| 15 | Phosphorus | P |
| 16 | Sulphur | S |
| 17 | Chlorine | Cl |
| 18 | Argon | Ar |
| 19 | Potassium | K |
| 20 | Calcium | Ca |
(c)
(i)
Differences between electrical insulators and electrical conductors
| Electrical insulators | Electrical conductors |
| Does not conduct electricity | Conducts electricity |
| Has narrow conduction energy band | Has wide conduction energy band |
| There exists a wide forbidden energy gap between valence and conduction band | Has no forbidden energy gap |
| Electrons firmly bound to nucleus | Electrons loosely bound to nucleus |
| There are no free electrons | Has more free electrons |
(ii)
A simple electrical circuit made up of a cell and a switch connected to two electric bulbs connected in parallel

a)
i)
Explain the term hazard.
ii)
List two safety precautions against hazards in the teaching and learning of science.
b)
In a tabular form state three differences between osmosis and diffusion.
c)
i)
What is weather?
ii)
State two differences between weather and season.
d)
i)
What is a fertile soil?
ii)
State two factors that cause loss of soil fertility.
a)
i)
Hazard is a danger/risk that could result in physical harm to people/damage to property or is any source of potential damage/harm/adverse health effect on something/someone.
ii)
Precautions against hazard
1. Wearing of protective clothing/boots/goggles
2. Routine maintenance of equipment
3. Closing all taps before leaving the laboratory
4. Switching off all electrical points
5. Mounting hazard signs of dos and don'ts in the laboratory/working area etc.
6. Avoid skin and eye contact with chemicals
7. Use equipment only for its designated purpose
8. All containers must have appropriate labels. Unlabeled chemicals should never be used
9. Do not taste or intentionally sniff chemicals
10. Never consume and/or store food or beverages or apply cosmetics in areas where hazardous chemicals are used or stored
11. Wash exposed areas of the skin prior to leaving the laboratory
12. Do not work alone in a laboratory if the procedures being conducted are hazardous
b)
Differences between osmosis and diffusion
| Osmosis | Diffusion |
| Refers to the movement of water molecules only | Movement of any chemical/substance/particle |
| Moves across semi-permeable membrane | Semi-permeable membrane not required |
| From dilute solution to concentrated solution | From concentrated solution to dilute solution |
| Occurs in liquids | Occurs in both liquids and gases/fluids |
c)
i)
Weather is atmospheric conditions at a place over a short duration of time or day to day conditions/changes of the atmosphere/environment
ii)
Differences between weather and season
| Weather | Season |
| Varies with time/daily/few hours | Lasts for about 3 to 4 months |
| Caused by geographic reasons/atmospheric condition | Caused by the revolution of the earth |
| Is a temporary/short term phenomenon | Is a long term phenomenon |
| Covers relatively small area | Covers large area |
| Does not influence plant/animal habitat | Influence plant/animal habitat |
| Not influenced by distance of the sun | Influenced by distance from the sun |
| Is measurable | Is immeasurable/not measured |
d)
i)
Fertilse soil is a soil that has an abundance of plant nutrients/minerals organic matter to support plant growth or it contains all the major nutrients for basic plant nutrition as well as other to support plant growth.
ii)
Causes of loss of soil fertility
1. Loss of top soil by erosion
2. Nutrient mining/depletion/removal of nutrients by crops
3. Sand winning/physical degradation of soil/poor soil structure/water logging/compaction
4. Decreased soil bioactivity
5. Soil acidification/salinization/alkalization
6. Leaching
7. Overgrazing
8. Overcropping
9. Soil erosion
10. Excessive burning/bush burning/wildfires
11. Soil pollution/indiscriminate use of agrochemicals
12. Inefficient soil management practices
(a)
For each of the following diseases, name the causative organism and one method of prevention.
(i)
Cholera
(ii)
Bilharzia
(iii)
Malaria
(iv)
Tuberculosis
(b)
Show how you would separate each of the following mixtures:
(i)
Common salt and sand
(ii)
Muddy water
(c)
Explain why the planet and their moons move around the sun but they do not clash.
(d)
Give two uses of the sun's energy in everyday life.
(a)
| Disease | Causative Organism | Prevention |
| Cholera | Vibrio Cholerae |
1. Drinking of pure/boiled water
|
| Bilharzia | Schistosoma |
1. Keeping the surroundings clean
|
| Malaria | Plasmodium |
1. Using mosquito nets
|
| Tuberculosis | Tuberculo Bacillus |
1. Avoiding over crowding
|
(b)
(i)
Separation of common salt and sand
1. Dissolve the common salt by adding water to the mixture in a beaker
2. Stir the mixture
3. Filter the sand from the salt solution using filter paper in a funnel
4. Using a Bunsen burner, heat the salt solution to retrieve the salt in an evaporating dish
(ii)
Separation of muddy water
1. Fold a filter paper into a funnel
2. Pour the muddy water into the funnel and filter
3. The water is then collected by a beaker and sand is left on the filter paper
(c)
Why the planet and their moons move around the sun but they do not clash
The gravitational force of attraction of the sun on the planets and their moons provides the centripetal force that keeps the planets and their moons moving in their respective orbits around the sun without clashing
(d)
Uses of the sun's energy in everyday life
1. It provides energy for photosynthesis in plants
2. It generates energy for solar panels
3. It is a source of light
4. It helps the skin produce vitamin D as it shines on the skin
5. It is used for drying clothes
a)
i)
Define each of the following terms:
α)
solvent;
β)
solute.
ii)
Name one common solvent used in the home.
b)
Explain the following terms as used in animal production:
i)
ration;
ii)
dehorning.
c)
i)
What is an element?
ii)
Write down the symbol of each of the following chemical substances:
α)
Potassium;
β)
Sulphur.
d)
Explain each of the following terms:
i)
Mixed farming;
ii)
Mixed cropping.
a)
i)
α)
Solvent is a substance that dissolves another substance.
β)
Solute is a substance that dissolves in a solvent.
ii)
Common solvent used in the home
1. Water
2. Alcohol
3. Turpentine
4. Kerosene
5. Petrol
b)
i)
Ration is the amount/quantity of food allowed an animal for a day/specific period of time.
ii)
Dehorning is the removal of the horns of animals to reduce fighting among them.
c)
i)
An element is a substance that is made up of atoms of the same kind.
OR
An element is a substance that cannot be broken down into any simplier form (by any known chemical means).
ii)
α)
Potassium → K
β)
Sulphur → S
d)
i)
Mixed farming is a type of farming in which animals and plants are produced on the same piece of land at the same time.
ii)
Mixed cropping is the cultivation of more than one type of crop on the same piece of land at the same time.
Note: the at the same time phrase is important in both explanations.
(a)
(i)
What is pollution?
(ii)
Name two types of pollution. For each type, give one pollutant and its source.
(b)
(i)
Explain the term vegetative reproduction.
(ii)
Give any two examples of plants that reproduce vegetatively.
(c)
(i)
List the parts of an atom and show the electrical charges of each of the parts.
(ii)
Explain the term work.
(iii)
Distinguish between heat and temperature and give their units.
(a)
(i)
Pollution is the release of toxic/harmful/poisonous substances into the environment.
(ii)
Types of pollution
| Types of pollution | Pollutant | Source |
| Water pollution | Untreated waste discharged into water | Industries |
| Air pollution | Carbon monoxide
Smoke |
Car exhaust |
| Land pollution | Scrap metal containers
Bottles |
Industries
Homes |
(b)
(i)
Vegetative reproduction is a form of reproduction whereby plants produce young ones from growing parts/buds of the parent plant.
(ii)
Examples of plants that reproduce vegetatively
1. Potato
2. Yam
3. Cocoyam
4. Canna lily
5. Onion
6. Plantain
7. Banana
8. Ginger
9. Pineapple
10. Bryophyllum
11. Sugar cane
12. Cassava
13. Fern
14. Elephant grass
15. Tiger nuts
16. Garlic
(c)
(i)
Parts of an atom and their electrical charges
| Part | Charge |
| Proton | + |
| Electron | -1 |
| Neutron | 0 |
(ii)
Work is said to be done when the point of application of a force moves an object through a distance in the direction of the force.
OR
Work is said to be done when a force moves a body through a distance in the direction of the force.
OR
Work is the product of force and the distance moved in the direction of the force.
OR
Work = Force x distance moved in the direction of the force
(iii)
Differences between heat and temperature
Heat is the energy which causes rise in temperature of bodies while temperature is the degree of hotness or coldness of a body.
The unit of heat is joules and temperature is kelvin or degree celsius
a)
The diagram below is an illustration of a longitudinal section of a canine tooth in humans.
Study the diagram carefully and answer the questions that follow.

i)
Name each of the parts labelled I, II, III and IV.
ii)
What is the function of each of the parts labelled I and III?
iii)
Which of the labelled parts could be affected by tooth decay?
iv)
State three ways by which tooth decay may be prevented.
b)
The diagram below is an illustration of a scientific phenomenom which occurs in nature.
Study the diagram carefully and answer the questions that follow.

i)
What phenomenom does the diagram illustrate?
ii)
Identify each of the parts labelled I, II, III, IV and V.
iii)
Explain why an object at the bottom of a pond appears closer to the surface than it actually is.
c)
The diagram below is an illustration of an experiment performed to separate the components of muddy water.
Study the diagram carefully and answer the questions that follow.

i)
Name each of the parts labelled I, II and III.
ii)
State the function of the part labelled II.
iii)
Name the substance obtained as the filtrate.
iv)
State three physical properties of the filtrate.
v)
Name two other materials that could be used in place of the part labelled II.
d)
The diagram below is an illustrates a farmland on a sloppy area.
Study the diagram carefully and answer the questions that follow.

i)
What process is likely to occur on the farmland when it rains heavily?
ii)
State two farming practices that can also lead to the process mentioned in (i).
iii)
List four farming practices that could be used to control the process mentioned in (i).
iv)
Mention three soil resources that would be depleted from the farmland when it rains heavily.
a)
i)
I → Crown or Enamel
II → Dentine
III → Cement or Periodontal membrane
IV → Jaw bone or Root
V → Pulp Cavity
ii)
Functions of I (Crown or Enamel)
1. Protect teeth from harmful bacteria
2. Enables teeth withstand pressure of chewing
3. Cutting/chewing/protect dentine/protect pulp cavity
Functions of III (Cement or Periodontal membrane)
Holds tooth firmly in socket or jaw bone or supports the tooth
iii)
The part affected by tooth decay is V (Pulp Cavity)
iv)
Prevention of Tooth decay
1. Avoid using sharp-pointed objects
2. Avoid having dry mouth
3. Use water containing flourides to wash teeth/mouth
4. Avoid smoking
5. The teeth should be cleaned regularly after each meal/remove food particles from the teeth/flossing
6. Wash the mouth vigorously after each meal
7. Regular visit the dentist
8. Avoid eating too hot food
9. Avoid eating too much sugary food
10. Avoid eating too cold food
b)
i)
The phenomenon illustrated is refraction of light
ii)
I → Normal
II → Incident ray
III → Angle of incidence
IV → Angle of refraction
V → Refracted ray
iii)
Why object appears closer to surface
Rays from the object at the bottom are bent away from the normal as they come out of the water. In a straight line, these rays appear to come from a point above the bottom
c)
i)
I → Retort/clamp stand
II → filter paper
III → funnel
ii)
Function of II (Filter paper)
1. To filter solid or insoluble particles or residue
2. To separate the mud,solid or insoluble particles from the water
3. To prevent residue/solid/insoluble particles/mud from entering the filtrate
iii)
Name of filtrate is water
iv)
Physical properties of filtrate (Water)
1. It has a density of 1 gcm-3 or 1000 kg m-3
2. It boils at 100 oC
3. It freezes at 0 oC (at 1 atm)
4. It is colourless
5. It is tasteless or insipid
6. It is odourless
7. It has a high surface tension
8. It is a universal solvent
9. It is transparent
10. It has a neutral pH or pH of 7
11. It exists in three states (solid, liquid and gas)
v)
Other materials that could be used instead of filter paper
1. Cotton wool
2. Foam
3. Glass wool
4. Clean/white cloth
d)
i)
Process likely to occur is erosion
ii)
Farming practices that could lead to the process occuring (erosion)
1. Bush burning
2. Deforestation
3. Continuous cropping
4. Crop removal
5. Excessive use of chemicals or inorganic fertilizers
6. Overgrazing
7. Cultivating or ploughing along slope
iii)
Farm practices that could control the process (erosion)
1. Planting cover crops
2. Terracing
3. Cultivating or ploughing slope or contour
4. Heavy mulching
5. Construction of drainage channels
6. Planting trees beside farm
7. Strip cropping
8. Contour bunding
iv)
Soil resources depleted
1. Soil organisms
2. Nutrients
3. Mineral matter
4. Soil particles or mineral matter
5. Growing crops
6. Air
7. Organic matter or humus