1.
Which of the following planets may be seen as a bright star in early mornings or evenings?
Jupiter
Mars
Saturn
Uranus
Answer: E
2.
Disposal of sewage into a river which supplies water for domestic use may lead to an outbreak of
malaria
cholera
guinea worm
river blindness
Answer: B
3.
The force which acts between planets and keeps them in their orbits is called
electrical force
magnetic force
gravitational force
frictional force
Answer: C
4.
Atoms of the same element have the same
I. number of electrons
II. number of protons
III. chemical properties
Which of the above statements are true?
I and II only
II and III only
I and II only
I, II and III
Answer: D
5.
Determine the potential energy of a block of mass 2 kg placed on a building 10 m tall. [g = 10 ms-2]
20 J
50 J
100 J
200 J
Answer: D
Potential energy = mass x acceleration due to gravity x height
P.E = mgh
P.E = 2 x 10 x 10 J = 200 J
6.
The following substances are mixtures except
air.
carbon dioxide.
salt solution.
smoke.
Answer: B
Carbon dioxide is a compound with the chemical formula CO2.
7.
The type of image formed in a plane mirror is always
diminished.
enlarged.
real.
virtual.
Answer: D
Properties of image formed on a plane mirror
1. The image obtained is virtual.
2. The image is laterally inverted.
3. The image is erect.
4. The size of the image is the same as the size of the object.
5. The distance between the image obtained is the same as the distance between the object from the mirror.
8.
Water drains faster through sand than clay because
sand particles are rougher.
sand contains more air spaces.
clay particles are smoother.
clay particles are bigger.
Answer: B
9.
Which of the following pairs of diseases are both contracted through water?
Cholera and dysentery
Smallpox and dysentery
Ringworm and smallpox
Tuberculosis and cholera
Answer: A
10.
Digested food substances are absorbed into the blood stream in the
kidneys.
liver.
stomach.
ileum.
Answer: D
11.
Footrot disease in animals is caused by
bacteria.
fungi.
protozoa.
viruses.
Answer: B
12.
The ear is the organ for detecting
colour.
heat.
scent.
sound.
Answer: D
13.
The S.I unit of energy is represented as
Joule.
joule.
j.
Js.
Answer: A
The unity name begins with a Capital letter and symbol is capital J.
14.
When equal amount of water is poured on dry soil samples, the increase in weight per unit amount of soil would be highest in
gravel.
clayey soil.
sandy soil.
loamy soil.
Answer: B
Clayey soil has the highest water holding capacity hence will have the highest weight (weight of the dry soil sample + weight of water absorbed).
15.
During athletics, a boy slipped on a banana peel on the ground and fell. This is because
There was no friction
The ground was hard
The banana peel was soft
The ground was sandy
Answer: A
16.
Which of the following liquids cannot dissolve an oil paint?
Kerosene
Petrol
Turpentine
Water
Answer: D
17.
Which of the following diseases is transmitted by close contact with an infected person?
AIDS
Bilharzia
Elephantiasis
Measles
Answer: D
18.
When matter changes state from gas to liquid there is
a decrease in mass.
a decrease in volume.
an increase in pressure.
an increase in temperature.
Answer: B
19.
About 55% of blood is made up of the plasma while the remaining 45% is made up of
Cells
Cochlea
Iris
Retina
Answer: A
20.
Urinating in rivers is a common manner of spreading diseases such as
cholera
bilharzia
malaria
measles
Answer: B
21.
A good thermometer liquid must
be colourless.
boil at 100oC and freeze at 0oC.
cling to the walls of the glass.
expand evenly and regularly.
Answer: D
22.
Germs that infect the respiratory system are frequently spread through
I. mucus.
II. air pollution.
III. coughs.
I only
II only
II and III only
I, II and III
Answer: D
23.
Which of the following processes should be carried out first when separating a mixture of sand and common salt?
crystallization of the salt
dissolution of the salt
distillation of the solvent
filtration of the mixture
sublimation of the solute
Answer: B
24.
A group of stars form
The universe
The atmosphere
The solar system
The planetary system
Answer: E
25.
Trees in desert regions have thick barks which enables them to
prevent heat loss
absorb more light
prevent water loss
absorb more water
Answer: C
26.
An object is placed 20 cm in front of a plane mirror. The distance between the object and the image is
20 cm.
40 cm.
60 cm.
80 cm.
Answer: B
Characteristics of image formed by a plane mirror
1. The image formed by a plane mirror is virtual and erect.
2. The image formed by a plane mirror is of the same size as the object.
3. The image is formed behind the mirror and the distance of the image from the mirror is equal to the distance of the object from the mirror.

Distance between the object and the image = Object distance + image distance
Distance between the object and the image = 20 cm + 20 cm = 40 cm
27.
Answer: B
28.
Which of the following Ghanaian scientists is known for promoting Mathematics and Physics?
Prof. Anamuah Mensah
Prof. Ewurama Addy
Prof. Francis Allotey
Prof. Osei Anto
Answer: C
29.
The joule is the S.I unit for
energy.
force.
power.
pressure
Answer: A
30.
Alum is added to water during treatment to
kill germs.
help suspended particles to settle.
make the water colourless.
give taste to the water.
Answer: B
31.
Birds are able to fly because they have
hollow bones
web legs
tail feathers
flat chest
Answer: A
32.
Which of the following parts of the tooth is embedded in the jaw bone?
Gum
Neck
Root
Crown
Answer: C

A tooth consists of three main parts, the crown, the root and the neck.
The crown is the part of tooth that shows above the gum.
The root is the part buried in the jawbone.
The point where the crown and the root meet is the neck of the tooth.
33.
The major cause of pollution at a stone quarry is
dust.
human waste.
acid disposal.
smoke.
Answer: A
A quarry is a place where rocks, sand, or minerals are extracted from the surface of Earth.
34.
Which of the following substances is a compound?
Oxygen
Magnesium
Water
Sodium
Answer: C
A compound consists of two or more different elements chemically combined in a fixed ratio. Oxygen, magnesium and sodium are all elements but water is a compound made up of hydrogen and oxygen (H2O)
35.
Which of the following structures contain cellulose?
Cell wall
Cell membrane
Chloroplast
Mitochondrion
Answer: A
36.
In the pin-hole camera, the image formed is always
erect and bright.
erect and blurred.
inverted and real.
inverted and virtual.
Answer: C
37.
Oxygen is made available to all cells of the human body by the
plasma.
platelets.
white blood cells.
red blood cells.
Answer: D
38.
Which of the following statements are reasons for conserving energy?
I. Insufficient production of energy
II. Increasing demand of energy
III. Limiting production of carbon (IV) oxide
I and II only
I and III only
II and III only
I, II and III
Answer: B
NOTE: One must still conserve energy even when demand of energy is not high. Conversation will ensure that the resources used for the generation of the energy is reserved for future generations
39.
An example of inorganic fertilizer is
ammonium nitrate.
cow dung.
farmyard manure.
poultry dropping.
Answer: A
40.
The process by which heat travels along a metal is called
convection.
conduction.
expansion.
radiation.
Answer: B
(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 density of a substance
(ii)
Explain how the density of a stone could be determined
(b)
A box with a volume of 1000 m3 is filled with sand to the brim. If the density of sand is 2 kgm-3, calculate the mass of sand in the box.
(c)
Copy and complete the table below:
| Parasite | Disease | Prevention |
| Vibrio cholerae | Cholera | Eating hot food |
| Plasmodium | (i) | (ii) |
| Louse | (iii) | Personal Hygiene |
| (iv) | Ringworm | (v) |
(d)
Name the method which could be used to separate each of the following mixtures into their components:
(i)
Alcohol and water
(ii)
Salt and water
(iii)
Powdered charcoal and iron filings
(iv)
Powdered chalk and water
(a)
(i)
Density is the mass per unit volume of a substance
OR
Density =
(ii)
Determination of the density of stone
1. Measure/weigh the mass of stone by means of a beam/chemical balance as M g
2. Fill a large measuring cylinder with water to a suitable level and record the volume as V1 cm3
3. Tie the stone with thread and gently lower it into the water in the measuring cylinder and record the new volume as V2 cm3
The density of the stone is then calculated as follows:
Volume of stone = V2 cm3 - V1 cm3
Mass of stone = M g
Density =
Density of the stone =
(b)
Density =
Density x Volume = Mass
∴ Mass = Density x Volume
Density = 2 kgm-3
Volume = 1000 m3
Mass = 2 kgm-3 x 1000 m3
Mass = 2000 kg
(c)
Parasite |
Disease |
Prevention |
Vibrio cholerae |
Cholera |
Eating hot food |
Plasmodium |
(i) Malaria |
(ii) 1. Sleeping in mosquito nets
|
Louse |
(iii) Typhus |
Personal Hygiene |
|
(iv) Fungus |
Ringworm |
(v) 1. Avoid sharing comb and towel
|
(d)
Methods of separation:
(i)
Alcohol and water → Distillation/fractional distillation
(ii)
Salt and water → Distillation/Evaporation and condensation
(iii)
Powdered charcoal and iron filings → Use of magnet
(iv)
Powdered chalk and water → Filtration/decantation
a)
i)
What is aerobic respiration?
ii)
State the main difference between aerobic respiration and anaerobic respiration.
b)
i)
Explain the term potential difference.
ii)
The potential difference across the terminals of a 100 Ω resistor is 250 V.
Calculate the current flowing through the resistor.
c)
i)
Which crop is infected by the Swollen Shoot disease?
ii)
State the causative organisms of the disease.
iii)
State the method of spread of the disease.
iv)
Give two ways of preventing the spread of the disease.
d)
Consider the given elements: 37 X and 920 Y
i)
Write the electronic configuration for Y;
ii)
State the possible ion that could be formed by X to make it more stable.
a)
i)
Aerobic respiration is the process of cellular respiration that takes place in the presence of oxygen gas to produce energy from food.
OR
Aerobic respiration is the breakdown/oxidation of organic food substance/glucose in the presence of oxygen to release large amount of energy, water and carbon dioxide as by-products.
ii)
Aerobic respiration requires oxygen while anaerobic respiration does not require oxygen.
OR
In aerobic respiration oxygen is used while in anaerobic respiration oxygen is not used.
b)
i)
Potential difference also known as voltage, is the external work needed to bring a charge from one location to another location in an electric field.
OR
Is the work done in moving a unit of positive electric charge from one point to another.
ii)
Potential Difference (V) = Current x Resistance
V = IR
Where V = potential difference, I = current and R = resistance
Potential difference = 250 V
Resistance = 100 Ω
250 = I x 100
Divide both sides by 100 to solve for I.
I = = 2.5 A
The current flowing through the resistor is 2.5 A
c)
i)
Cocoa
ii)
Causative organism of the swollen shoot disease
Virus/Cacoa swollen shoot virus
iii)
Method of spread of the swollen shoot disease
Virus transmitted by nymphs of mealy bugs from infected plant to healthy plants.
iv)
Ways of preventing the spread swollen shoot disease
1. Destroy infected trees
2. Regular inspection of seedlings/planting materials
3. Use of quarantine/cordin sanitaire (leaving 10m wide cocoa free zone around area
4. Barrier cropping
5. Using partly tolerant hybrids/using resistant varieties
6. Removing host free species
d)
37 X and 920 Y
i)
Electronic configuration for Y = 2:7
ii)
X+/L+
Note: The ion formed is cation. It can lose the one electron in its last shell to be make it more stable with only two electrons.
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)
i)
State two physical properties of water.
ii)
Using litmus paper, explain why water is neutral.
b)
Give one function of each of the following nutrients in plants:
i)
Nitrogen;
ii)
Potassium.
c)
i)
State two human activities that disrupt the carbon cycle.
ii)
State two effects of the disruption of the carbon cycle on the environment.
d)
i)
What is density of a body?
ii)
A body of mass 50kg has a density of 2kg/m3. Calculate the volume of the body.
a)
i)
Physical properties of water
1. Odourless
2. Colourless
3. Tasteless/insipid
4. Freezes at 0oC
5. Boils at 100oC
6. Universal solvent
7. Exists in three states
8. Has a density of 1g/cm3 (at 4oC)
9. It is transparent
10. It has a neutral pH/pH = 7
11. High surface tension
ii)
Why water is neutral
When red litmus paper or blue litmus paper is dropped in a sample of water, there is no change in colour.
b)
i)
Functions of nitrogen in plants
1. For plant growth/vegetative growth
2. Increases yield of straw
3. A constituent of organic compound of plants
4. For plant development
5. Increases seed and fruit production
6. To make proteins
7. To make chlorophyll
ii)
Functions of potassium in plants
1. Plays an important role in plant metabolism
2. Plays an important role in translocation of starch to growing parts
3. Plays an important role in carbohydrate formation
4. Neutralization of organic acids
5. Strengthens straw and stalk of plants
6. Aids absorption of nutrients
7. Helps to reduce diseases in plants
8. Helps to produce quality fruit and promotes seed development
9. Activates enzymes for photosynthesis and respiration
10. Helps build proteins
11. Aids absorption of nutrients
c)
i)
Human activities that disrupt the carbon cycle
1. Destruction of forest/cutting of trees/lumbering
2. Bush burning
3. Burning of fossil fuels
ii)
Effects of the disruption of the carbon cycle on the environment
1. Global warming/rise in temperature/greenhouse effect/affects climate
2. Reduction in oxygen
3. Rise in sea level/flooding/melting of ice
4. Animals/plants become endangered/extinct
5. Prolonged drought
6. Reduction in rainfall
d)
i)
Density is the mass per unit volume of a body
OR
Density =
ii)
Density =
Density x Volume = Mass
Divide both sides by Density
Volume =
Mass = 50 kg
Density = 2kg/m3
Volume = = 25 m3
(a)
Explain each of the following observations in nature:
(i)
In the depths of the ocean where it is always dark, there are no green plants.
(ii)
On an island where there are no insects and birds, the pawpaw plant produces only flowers but no fruits
(b)
Describe how soil is formed.
(c)
(i)
State the laws of reflection
(ii)
Draw a labelled diagram to show the reflection of light on a plane mirror
(a)
(i)
In the depths of the ocean where it is always dark, there are no green plants
Light does not get to those depths and therefore photosynthesis cannot occur there.
(ii)
On an island where there are no insects and birds, the pawpaw plant produces only flowers but no fruits
Insects and birds transfer pollen grains for pollination of pawpaw flowers and in their absence fertilization does not occur and there is no fruit formation.
OR
Insects and birds are agents of pollination/transfer pollen grains. In their absence no fertilization and no fruit formation occur.
(b)
How soil is formed
Soil is formed when rocks weather/breakdown to form soil particles. Dead remains of organisms are acted upon by micro-organisms and all mix together.
(c)
(i)
Laws of reflection
1. The incident ray, the reflected ray and the normal at the point of incidence all lie in the same plane
2. The angle of incidence is equal to the angle of reflection
(ii)
A labelled diagram to show the reflection of light on a plane mirror
