Integrated Science Mock 2025

Question 1 of 50

Which organisms break down dead plants and animals and return nutrients to the soil?

Question 2 of 50

In the water cycle, water vapour cools to form clouds by

Question 3 of 50

The type of reproduction that involves only one parent is

Question 4 of 50

The red blood cells transport oxygen because they contain

Question 5 of 50

The male reproductive cell is the

Question 6 of 50

Sound cannot travel through

Question 7 of 50

Cholera is mainly spread through

Question 8 of 50

A testable explanation that a scientist proposes before doing an experiment is

Question 9 of 50

Why do scientists repeat an experiment several times?

Question 10 of 50

Which of these is a quantitative observation?

Question 11 of 50

What is the chemical name of the binary compound NaCl?

Question 12 of 50

Which property makes metals suitable for electrical wires?

Question 13 of 50

Which of these solids is a non-metal?

Question 14 of 50

A compound made of exactly two elements is called

Question 15 of 50

The spreading of particles from where they are many to where they are few is

Question 16 of 50

The enzyme in saliva that digests starch is

Question 17 of 50

Which part of the human eye controls the amount of light entering it?

Question 18 of 50

Insulin is produced by the

Question 19 of 50

A body of mass 10 kg is lifted through a height of 2 m. Calculate the potential energy gained. (g = 10 m/s²)

Question 20 of 50

Calculate the power of a machine that does 600 J of work in 20 s.

Question 21 of 50

Three resistors of 2 Ω, 3 Ω and 5 Ω are connected in series. Find the total resistance.

Question 22 of 50

The device used to convert mechanical energy into electrical energy is a

Question 23 of 50

The bending of light as it passes from air into water is called

Question 24 of 50

The splitting of white light into its seven colours by a prism is called

Question 25 of 50

Which of the following is a method of controlling soil erosion?

Question 26 of 50

Sleeping sickness is spread by the

Question 27 of 50

The build-up of gases such as carbon dioxide that trap heat in the atmosphere causes

Question 28 of 50

Which of the following is a biological method of pest control?

Question 29 of 50

In an experiment on how fertiliser affects maize growth, the amount of fertiliser is the

Question 30 of 50

In a fair test, the set-up that is left without the factor being tested is the

Question 31 of 50

What is the formula of magnesium oxide?

Question 32 of 50

Osmosis is the movement of

Question 33 of 50

A slice of pawpaw placed in strong salt solution becomes soft and limp because

Question 34 of 50

Salting fish helps to preserve it because

Question 35 of 50

If the cost is GH¢1.20 per kWh, the daily cost of using 8 kWh is

Question 36 of 50

The name of N₂O₅ is

Question 37 of 50

Ionic solids conduct electricity only when molten or in solution because

Question 38 of 50

A potato strip placed in distilled water increases in length because

Question 39 of 50

The rate of diffusion of a gas increases when

Question 40 of 50

In a 28-day menstrual cycle, ovulation usually occurs around

Question 41 of 50

A flower with both stamens and carpels is

Question 42 of 50

Solar cells connected in series

Question 43 of 50

A spring extends 4 cm under 2 N. What load gives an extension of 10 cm (within the elastic limit)?

Question 44 of 50

The salt formed when sulphuric acid reacts with potassium hydroxide is

Question 45 of 50

Which pair of substances would produce a salt and carbon dioxide?

Question 46 of 50

A person with failed kidneys may be treated by

Question 47 of 50

The hormone that maintains the uterine lining during pregnancy is

Question 48 of 50

A solar panel of area 2 m² receives 800 W/m² and is 15% efficient. Its electrical output is

Question 49 of 50

An LED with a forward voltage of 2 V is connected to a 9 V battery. To limit current to 20 mA, the series resistor should be

Question 50 of 50

Carbon monoxide is dangerous because it