BECE Integrated Science Past Questions 2024

The energy transformation that occurs when sodium hydroxide is dissolved in water is

Digestion of rice in humans starts from the

A substance that could be used in large scale treatment of domestic water is

Chlorophyll helps plants absorb energy from the sun during photosynthesis. It is located in a structure called

An electrical engineer replaced a 20 W bulb with a 50 W bulb. The unit inscribed on the bulb measures its

The following devices work based on the principle of pressure in fluids except

In making ornaments and jewellery, non-reactive metals are preferred because they

A metallic saddle was left in boiling soup. After sometime, the handle became hot. This is because the particles in the saddle

The simplest way of making well water suitable for laundry is by

A poultry farmer observed that layers were producing thin-shelled eggs. The defect is mostly caused by a deficiency in

A poultry farmer observed that layers were producing thin-shelled eggs. What ingredient should be added to the feed to correct the defect?

Which of the following pairs of energy sources is environmentally friendly?

A student is to measure 20 cm³ of a sodium hydroxide solution. What instrument should be used?

(a)(i) Design a four-year crop rotation programme using maize, cowpea, cassava, and cabbage. (a)(ii) State two reasons for the sequence you have chosen. (b)(i) Identify three symptoms of COVID-19. (b)(ii) Suggest two ways of preventing the spread of COVID-19 in a school setting. (b)(iii) Explain why COVID-19 was declared a pandemic. (c) A vehicle of mass 1,000 kg accelerates uniformly from 100 m/s to 150 m/s in 10 seconds. (i) Calculate the acceleration of the vehicle. (ii) Calculate the force producing this acceleration. (iii) Calculate the final momentum of the vehicle when it eventually comes to a stop.

The building block of a material with the smallest unit of matter that retains the properties of an element is

(a) Use a balanced chemical equation to explain how sodium bicarbonate (NaHCO₃) relieves stomach upset caused by excess hydrochloric acid (HCl). (b) Calculate the potential energy of a body of mass 20 kg placed on a wall that is 10 m high. (Take g = 10 m/s².) (c)(i) Define the abbreviation LED. (c)(ii) Name two devices that use LED technology. (d)(i) Name two tools used to prepare a raised nursery bed and state the function of each. (e)(i) List three observable features of an animal cell. (e)(ii) State two functions of nerve cells (neurons).

Oil from a mechanic workshop accidentally spilled into a pool of water that was breeding mosquitoes. After sometime, the pool was no longer breeding mosquitoes. Which control method was deployed?

Grasshopper management is crucial because of all the following reasons except

A hunter experiences a backward force upon firing a gun. Which of Newton's laws of motion is demonstrated?

Which of the following sets of devices operate on the principle of magnetism?

Which of the following elements has four electron shells?

Canned foods and drinks have expiry dates on them. The hazard involved in taking an expired drink is

Two unknown solutions A and B were tested. Solution A changed red litmus paper to blue, while solution B retained the colour. What could be the content of solution A?

A student with a stomach upset was given first aid with Mg(OH)₂ written on it. What is the common name of this substance?

A bowl of water on a gas stove was initially cold. It became warm after sometime. What was the mode of heat transfer in the water?

The portion of air which acts as a solvent is

A natural phenomenon that illustrates the dispersal of light is

When a stick is dipped into a pool of water, it appears to

Cockroaches in a cupboard were killed after an insecticide was sprayed. The insecticide reached the cockroaches by the process of

Which of the following nursery beds is suitable for a flood-prone area?

Nitrogen deficiency in soils causes

An electric bulb is rated 0.5 A, 120 V. Determine the power produced when the bulb is turned on.

The following processes are chemical changes except

Which of the following statements best describes the term "green economy"? It includes