Integrated Science Mock 2021

Question 1 of 50

Immunisation protects children against

Question 2 of 50

Which practice causes soil erosion?

Question 3 of 50

What is the name of the compound CaO?

Question 4 of 50

Which property makes copper useful for cooking pots?

Question 5 of 50

The smell of perfume spreads through a room because of

Question 6 of 50

Diffusion happens faster when the temperature is

Question 7 of 50

The female reproductive cell in humans is the

Question 8 of 50

A fertilised egg is called a

Question 9 of 50

Which of these is a method of family planning?

Question 10 of 50

Which force keeps the planets in orbit around the sun?

Question 11 of 50

Oiling the moving parts of a bicycle reduces

Question 12 of 50

In a circuit diagram, a long and short pair of parallel lines represents

Question 13 of 50

A switch in a circuit is used to

Question 14 of 50

Which material conducts electricity?

Question 15 of 50

Which indicator turns red in acid and blue in alkali?

Question 16 of 50

Voltage is measured with a voltmeter connected

Question 17 of 50

Tuberculosis is mainly spread through

Question 18 of 50

Which is a viral disease?

Question 19 of 50

Which sense organ detects light?

Question 20 of 50

A rainbow forms when sunlight is

Question 21 of 50

Objects that let no light pass through them are

Question 22 of 50

Which pollutant from vehicle exhausts is poisonous because it combines with haemoglobin?

Question 23 of 50

What is the formula of aluminium oxide? (Al = +3, O = −2)

Question 24 of 50

Root hairs take in water from the soil by

Question 25 of 50

Pollination by insects is helped by flowers that have

Question 26 of 50

A box of mass 5 kg is pushed with a net force of 20 N. What is its acceleration?

Question 27 of 50

The acid found in the stomach is

Question 28 of 50

An ant sting can be soothed with a mild base because the sting contains

Question 29 of 50

What is the resistance of a lamp that carries 0.5 A at 6 V?

Question 30 of 50

A 2 kW iron is used for 30 minutes. How much energy does it use?

Question 31 of 50

Which disease is spread by the Aedes mosquito?

Question 32 of 50

The part of the brain that controls balance and coordination is the

Question 33 of 50

Nerves that carry impulses from sense organs to the central nervous system are

Question 34 of 50

The image formed by a pinhole camera is

Question 35 of 50

A person with two identical alleles for a trait (TT or tt) is

Question 36 of 50

The number of neutrons in ²³Na (atomic number 11) is

Question 37 of 50

The electron configuration of an element with atomic number 17 is

Question 38 of 50

Which method separates a mixture of salt and sand?

Question 39 of 50

Sublimation is the change from

Question 40 of 50

The mass number of an atom with 17 protons and 18 neutrons is

Question 41 of 50

Fractional distillation separates liquids by differences in

Question 42 of 50

Chromatography separates

Question 43 of 50

The number of moles in 36 g of water (H = 1, O = 16) is

Question 44 of 50

Denitrifying bacteria return nitrogen to the air as

Question 45 of 50

Carbon dioxide is removed from the atmosphere mainly by

Question 46 of 50

Transpiration contributes to the

Question 47 of 50

The part of the brain that controls balance is the

Question 48 of 50

The functional unit of the kidney is the

Question 49 of 50

Gaseous exchange in the lungs takes place in the

Question 50 of 50

In the nitrogen cycle, nitrifying bacteria convert