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Question 1:-

Subtopic: B1.1 Characteristics of living organisms

Which is not a characteristic of all living organisms?
A excretion
B growth
C photosynthesis
D sensitivity

▶️Answer/Explanation

Ans : C

Question 2:-

Subtopic: B2.1 Cell structure

Which statement about the structures found in animal and plant cells is correct?
A Both have cell walls.
B Only plant cells have a cell membrane.
C Both have cytoplasm.
D Only animal cells have a nucleus.

▶️Answer/Explanation

Ans : C

Question 3:-

Subtopic: B4.1 Biological molecules

Which row shows the elements and the small molecules that are used to make the larger
molecules?

▶️Answer/Explanation

Ans : D

Question 4:-

Subtopic: B5.1 Enzymes

Which type of molecules speed up chemical digestion?
A carbohydrates
B enzymes
C hormones
D fatty acids

▶️Answer/Explanation

Ans : B

Question 5:-

Subtopic: B6.1 Photosynthesis

The diagram shows a leaf, still attached to a plant, with both green and white areas that have been partly covered with black paper.
The leaf is left in bright light for six hours and then tested for starch.
Which area of the leaf turns blue-black after the starch test?

▶️Answer/Explanation

Ans : B

Question 6:-

Subtopic: B7.1 Diet

Which nutrient is needed to make strong bones and teeth?
A calcium
B fat
C starch
D fibre

▶️Answer/Explanation

Ans : A

Question 7:-

Subtopic: B8.3 Transpiration

The diagram shows a shoot at the start of an experiment investigating transpiration. The mass of the shoot, measuring cylinder, water and oil is measured.

The apparatus is left for three days and then the mass recorded for a second time.
Under which conditions would there be the most loss of mass from the apparatus?

▶️Answer/Explanation

Ans : B

Question 8:-

Subtopic: B12.1 Respiration

During cold weather, warm blooded animals, such as mammals and birds, require more food.
Which statement explains the reason for this?

▶️Answer/Explanation

Ans : A

Question 9:-

Subtopic: B13.3 Homeostasis

A person leaves an air conditioned building.
The temperature of the air conditioned building is 16 ºC.
The outside temperature is 39 ºC.
Which statement describes one response to the change in temperature?
A The blood detects the change in temperature and the person starts to shiver.
B The blood detects the change in temperature and the person starts to sweat.
C The brain detects the change in temperature and the person starts to shiver.
D The brain detects the change in temperature and the person starts to sweat.

▶️Answer/Explanation

Ans : D

Question 10:-

Subtopic: B15.3 Sexual reproduction in plants

The diagram shows a section through a flower.

Which labelled structures are the anther and the ovary?

▶️Answer/Explanation

Ans : D

Question 11:-

Subtopic: B17.1 Variation

Fingerprints are classified by their shape.
A class of students identified the type of fingerprint they have on the thumb of their left hand.
The chart shows the results.

Which statement about the data in the chart is correct?
A Fingerprints are an example of continuous variation because the data shows a range of
phenotypes.
B Fingerprints are an example of continuous variation because the data shows no intermediates.
C Fingerprints are an example of discontinuous variation because the data shows a range of phenotypes.
D Fingerprints are an example of discontinuous variation because the data shows no intermediates.

▶️Answer/Explanation

Ans : D

Question 12:-

Subtopic: B18.2 Food chains and food webs

The diagram shows a food chain.
Which is the producer?

▶️Answer/Explanation

Ans : B

Question 13:-

Subtopic: B19.1 Habitat destruction

Which row about the effects of deforestation is correct?

▶️Answer/Explanation

Ans : D

Question 14:-

Subtopic: C2.1 Elements, compounds and mixtures

Hexane and octane are liquid hydrocarbons that mix together.
Which apparatus is used to separate a mixture of these two liquids?

▶️Answer/Explanation

Ans : D

Question 15:-

Subtopic: C3.1 Formulas

When solid zinc carbonate is heated, a different solid and a gas are formed.
Which type of change occurs?
A chemical
B exothermic
C physical
D separation

▶️Answer/Explanation

Ans : A

Question 16:-

Subtopic: C2.2 Atomic structure and the Periodic Table

An atom of osmium is represented by  76190Os.
How many neutrons are in this atom?
A  76     B  114     C  190     D  266

▶️Answer/Explanation

Ans : B

Question 17:-

Subtopic: C2.5 Simple molecules and covalent bonds

The structures of some compounds are shown.

In which rows does the formula match the structure?
A  1 and 2     B  1 and 3     C  2 and 4     D  3 and 4

▶️Answer/Explanation

Ans : B

Question 18:-

 Subtopic: C4.1 Electrolysis

Molten lead(II) bromide is electrolysed using inert electrodes as shown.

An element is produced at the negative electrode.
What is the name of the element and of the negative electrode?

▶️Answer/Explanation

Ans : D

Question 19:-

Subtopic: C5.1 Exothermic and endothermic reactions

Potassium chloride is added to water.
The temperature of the solution decreases as the potassium chloride dissolves.
Which type of reaction occurs?
A endothermic
B exothermic
C oxidation
D reduction

▶️Answer/Explanation

Ans : A

Question 20:-

Subtopic: C9.6 Extraction of metals

Iron is extracted from its ore in the blast furnace.
One of the reactions involved is shown.

                                     Fe2O3 + 3CO → 2Fe + 3CO2
Which statement is correct?
A Iron(III) oxide and carbon monoxide are both oxidised.
B Iron(III) oxide and carbon monoxide are both reduced.
C Iron(III) oxide is oxidised and carbon monoxide is reduced.
D Iron(III) oxide is reduced and carbon monoxide is oxidised.

▶️Answer/Explanation

Ans : D

Question 21:-

 Subtopic: C7.1 The characteristic properties of acids and bases

Potassium oxide and sulfur dioxide are both soluble in water.
Which row describes properties of these oxides?

▶️Answer/Explanation

Ans : A

Question 22:-

Subtopic: C8.4 Transition elements

The box lists four substances.

Which substance is an element that forms a basic oxide and coloured compounds?
A  Br2     B  CO     C  Cu     D  Na

▶️Answer/Explanation

Ans : C

Question 23:-

Subtopic: C10.1 Water

Which statement about the treatment of the water supply is correct?
A Water from reservoirs and rivers is filtered to remove dissolved impurities.
B Chlorine is added to the water to kill bacteria.
C Sodium chloride is added to the water to make it pleasant to drink.
D Chlorine is added to make the water pure.

▶️Answer/Explanation

Ans : B

Question 24:-

Subtopic: C8.1 Arrangement of elements

Which element is used in the manufacture of sulfuric acid?
A carbon
B hydrogen
C nitrogen
D sulfur

▶️Answer/Explanation

Ans : D

Question 25:-

Subtopic: C10.2 Air quality and climate

Which statements about limestone are correct?
1 It contains calcium oxide.
2 It is used to manufacture lime.
3 It neutralises acidic industrial waste products.
4 It neutralises alkaline soil.
A  1 and 3     B  1 and 4     C  2 and 3     D  2 and 4

▶️Answer/Explanation

Ans : C

Question 26:-

Subtopic: C11.3 Fuels

Naphtha is obtained by the fractional distillation of petroleum.
Which statements about naphtha are correct?
1 It burns to form carbon dioxide and water.
2 It is a mixture of hydrocarbons.
3 It is present in bottled gas.
4 The main component of naphtha is methane.
A  1 and 2     B  1 and 4     C  2 and 3     D  3 and 4

▶️Answer/Explanation

Ans : A

Question 27:-

Subtopic: C11.5 Alkenes

 Which diagram represents a molecule that is formed by fermentation?

▶️Answer/Explanation

Ans : D

Question 28:-

Subtopic: P1.5.1 Effects of forces

Two children X and Y pull on a rope in opposite directions.
The diagram shows the size of each force and its direction.

What is the resultant force on the rope?
A 50 N towards X
B 50 N towards Y
C 950 N towards X
D 950 N towards Y

▶️Answer/Explanation

Ans : A

Question 29:-

Subtopic: P1.5.2 Turning effect of forces

A boy pulls a nail from a block of wood using a hammer, as shown.

The boy pulls the hammer with a force of 15 N in the position shown.
What is the moment produced about the pivot by the boy pulling on the hammer?
A  0.90 N m     B  2.4 N m     C  3.3 N m     D  4.2 N m

▶️Answer/Explanation

Ans : C

Question 30:-

Subtopic: P1.6.3 Energy resources

Electricity is generated using different sources of energy.
Which energy source is non-renewable?
A coal
B hydroelectric
C solar
D wind

▶️Answer/Explanation

Ans : A

Question 31:-

Subtopic: P2.1.2 Particle model

Which statement about gas particles is not correct?
A Increasing the temperature of a gas makes the gas particles move more slowly.
B The gas particles are in constant random motion.
C The pressure of a gas is caused by the collision of gas particles with the container.
D Very small particles suspended in a gas are in constant random motion.

▶️Answer/Explanation

Ans : A

Question 32:-

Subtopic: P2.3.1 Conduction

Two methods of cooking are grilling under a red-hot heater and frying in a shallow metal pan.

How does thermal energy pass through the air to reach the food in method 1 and how does thermal energy pass through the bottom of the metal pan in method 2?

▶️Answer/Explanation

Ans : C

Question 33:-

Subtopic: P3.1 General properties of waves

What is the name of the distance between two consecutive crests of a water wave?
A amplitude
B frequency
C speed
D wavelength

▶️Answer/Explanation

Ans : D

Question 34:-

Subtopic: P3.2.1 Reflection of light

An object is placed in front of a plane mirror on a wall.
What are the characteristics of the image formed?
A same size as object and inverted top to bottom
B same size as object and laterally inverted (left to right)
C smaller than object and inverted top to bottom
D smaller than object and laterally inverted (left to right)

▶️Answer/Explanation

Ans : B

Question 35:-

Subtopic: P4.2.1 Electrical charge

A plastic rod is rubbed with a cloth and the rod becomes positively charged.
What happens during this process?
A Negative charges move from the cloth to the rod.
B Negative charges move from the rod to the cloth.
C Positive charges move from the cloth to the rod.
D Positive charges move from the rod to the cloth.

▶️Answer/Explanation

Ans : B

Question 36:-

Subtopic: P4.5.3 Magnetic effect of current

Which material is used for the core of an electromagnet?
A aluminium
B copper
C iron
D steel

▶️Answer/Explanation

Ans : C

Question 37:-

Subtopic: P4.3.2 Series and parallel circuits

The diagrams show four identical resistors connected together in different arrangements.
Which arrangement has the smallest combined resistance?

▶️Answer/Explanation

Ans : D

Question 38:-

Subtopic: P4.5.3 Magnetic effect of current

There is a current-carrying wire perpendicular to the page.
The direction of the current is into the page.
Which diagram shows the pattern and direction of the magnetic field around the wire?

▶️Answer/Explanation

Ans : A

Question 39:-

Subtopic: P5.2.4 Half-life
The diagram shows how the count rate for a radioactive isotope varies with time.

How many half-lives of the isotope elapse in 45 hours?
A  1     B  3     C  45     D 75

▶️Answer/Explanation

Ans : B

Question 40:-

Subtopic: P5.2.2 The three types of nuclear emission

The diagram represents three types of ionising radiation L, M and N directed towards a sheet of paper, a sheet of aluminium foil and a block of lead.
The diagram shows whether each type of radiation penetrates each of the materials.

Which row identifies the radiations L, M and N?

▶️Answer/Explanation

Ans : C

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