BECE JHS Integrated Science 2016 Past Questions

An example of a third class lever is

(a) The funnels in the diagram below contain equal amounts of different types of soils labelled K, L and M. Equal volumes of water were poured onto each soil at the same time and allowed to drain for 20 minutes.
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Study the diagram and answer the questions that follow

(i) What is the aim of the experiment?
(ii) Which soil has the highest rate of drainage?
(iii) Which soil has the highest water retention capacity?
(iv) Which soil is most likely to lose water and dry faster after rainfall?
(v) Which soil is most likely to be waterlogged after rainfall?
(vi) Which of the soil types would be suitable for maize cultivation?

(b) The diagram below illustrates hazard symbols labelled I, II, III and IV.
Study the diagram carefully and answer the questions that follow.
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(i) What does each of the symbols labelled I, II, III and IV represent?
(ii) Name one substance each that is associated with:
(α) I;
(β) II;
(γ) III.

(iii) Name a place where the hazard symbol labelled IV is often displayed
(iv) Which of the symbol(s) is / are found on chemical containers?

C. The diagrams below are illustrations of devices used to do work easily
Study the diagrams and answer the questions that follow
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(i) Give a general name for the devices.
(ii) Identify each of the devices labelled A, B, C and D.
(iii) Name the parts labelled I, II and III of device A when it is considered as a lever.

(iv) What does the arrow represent in the device labelled B?
(v) Name the type of work done with each of the devices labelled:

(α) C;
(β) D;

(d) The diagram below illustrates the digestive system in humans.
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Study the diagram carefully and answer the questions that follow

(i) Name each of the parts labelled I, II, III, IV and V
(ii) Name the part(s) of the digestive system where
(α) digestion of food substances occur
(β) digested food is absorbed into the bloodstream
(iii) Name the end-products of the digestion that is absorbed into the bloodstream

The release of a mature egg from an ovary into the fallopian tube in humans is called

(a) Name four weather measuring instruments.

(b) Name the stages in the life cycle of a mosquito.

(c) (i) List two properties of water
(ii) Explain why it is advisable to wash clothes with soft water

(d) State three ways in which soil profile is important.

The blood vessel that carries oxygenated blood from the lungs to the heart is known as

(a) List three modes of heat transfer.

(b) (i) What is a deficiency disease?
(ii) Name three deficiency diseases in humans.

(c) State two ways in which each of the following factors cause depletion of soil resources:
(i) burning
(ii) leaching

(d) List three processes that can change matter from one state to another.

An example of a plant micro-nutrient is

(a) (i) What is a satellite?
(ii) Give three uses of artificial satellites.

(b) State the composition of each of the following alloys:
(i) brass
(ii) steel
(iv) bronze

(c) Name three cultural practices used in vegetable production.

(d) List four parts of the respiratory system in humans.

What is the colour of the neutral wire in a three-pin plug?

(a) (i) What is a force?
(ii) State two ways in which forces could affect a body

(b) (i) What is a chemical change?
(ii) State three differences between chemical change and physical change.

(c) Name three physical properties of soil.

(d) Mention three diseases of the circulatory system in humans.

In the pin-hole camera, the image formed is always

(a) Write the systematic name for each of the following compounds:(i) H2O
(ii) MgO
(iii) CaO
(iv) CaCl2

(b) Name the instrument used in measuring the following:
(i) length of a rope
(ii) mass of a stone
(iii) temperature of a liquid
(iv) volume of a liquid

(c) List three factors that influence vegetable crop production.

(d) Name four stages in the life cycle of a flowering plant.

The part of the flower that develops into a fruit is the

The number of elements in the compound Ca(OH)2 is

The reason why alum is added to water during treatment is to

Which of the following animal parasites could be controlled by hand picking?

A stick which is partially immersed in water appeared to be bent due to

One difference between metals and non-metals is that metals

The cultivation of different crops on different plots of a farmland in a definite cycle is called

Iodine deficiency in humans could result in a disorder known as

A substance is termed combustible if it

Micro-organisms that cause diseases are collectively called

Which type of energy is lost when sweat evaporates from the human body?

Which of the following gases is involved in the rusting of iron?

The feeling of soil between fingers is used to determine the

Sodium hydroxide is an example of a base because it

Which of the following plants has its leaves modified for storing food?

Gases enter and leave the leaf of a plant through the

Which of the following vegetable crops is cultivated for its leaves?

An example of a body that does not produce its own light is the

Which of the following devices converts electrical energy into sound energy?

Transplanting of young seedlings is usually done in the evening because

A mixture of sugar and water could be separated by

Which of the following processes results in the formation of new substances?

Photosynthesis is important to living organisms because it produces

Global warming is caused by the

The warning and safety signs on chemical containers are usually represented by a symbol placed within a

In which of the following structures in a living cell is cellulose found?

Elements that could easily lose electrons to form cations are

The conversion of agricultural produce from its original form to other desirable forms is termed

The function of the hair in the nose of humans is to

A metal that is used as a thermometric liquid is

The joule is the S.I unit for

Which of the following gases supports combustion?

The form of energy which flows from one point to another due to temperature differences is known as

Which of the following resources does not produce energy?