CSEC Integrated Science Paper 1 May/June 1999 - Free CXC Past Paper with Answers

Which of the following is a renewable source of energy?

Which of the following is a characteristic of a good conductor of electricity?

Poor heat conductivity

Which of the following is a unit of power?

Which of the following is a type of simple machine?

Which of the following is a characteristic of a gas?

Fixed shape and fixed volume

Fixed shape but variable volume

Variable shape and fixed volume

Variable shape and variable volume

Which of the following is a process by which water changes from a liquid to a gas?

Which of the following is a type of wave?

Which of the following is a unit of force?

If a tin of sardines has been left open for several hours on a table, it is BEST to

heat the sardines before use

add vinegar to the sardines before use

cool the sardines in a refrigerator before use

discard the tin of sardines

Which of the following processes is NOT used to purify water?

Which of the following is NOT advisable as a treatment for an area of skin which has been burnt?

Plunging the area into cool water

Applying a moistened sterile cloth to the area

Removing any burnt skin and then applying an antiseptic cream

Covering the area with a clean cloth

Which of the following is a unit of electrical resistance?

In hot climates, loose-fitting clothes are MOST suitable because they

allow freer circulation of air

assist heat loss by radiation

assist heat loss by conduction

reflect much of the heat from the sun

Which of the following diagrams illustrates a circuit containing a lamp, ammeter and battery connected in series?

Energy is released when green plants use glucose during respiration.

The combustion of petroleum also releases energy.

Where does the energy from these two processes originate?

Which of the bulbs below will give the brightest light when operated at the same voltage?

Which of the following result from poor ventilation? I. Lack of oxygen II. Cool surroundings III. Rapid growth of bacteria IV. Unpleasant odours

Which TWO of the following diagrams represent class I levers?

Which of the following toxic gases functions by binding to the haemoglobin in the red blood cells?

Athlete's foot (a fungus infection) can be difficult to cure if

the shoes worn are too big

the individual has corns

the feet are always sweaty and dirty

high-heeled shoes are often worn

The majority of fish propel themselves forward through water by

forcing water through their gills

moving their side fins

regulating their swim-bladders

Which is the MINIMUM recommended time lapse between the eating of a full meal and the undertaking of vigorous activity?

A colour wheel consists of THREE colours, red, blue and green, EACH occupying an equal area. If the wheel is spun at a very high speed, the colour seen would be

Along which part of the track will the athletes move MOST slowly?

Mary did an experiment. She took the SAME ball, dropped it onto DIFFERENT surfaces, and measured the height it returned to after hitting EACH surface. What property of the surface was she testing?

The centre of gravity of an object is the

point at which gravity acts on the object

centre of the object

point at which the object can be balanced

point at which the mass of the object is heaviest

Which of the following laminae (thin uniform plates) has its centre of gravity CORRECTLY indicated by the dot?

The force of gravity experienced by astronauts in a space ship in circular orbit around the Earth

is greater than on the Earth

is less than on the Earth

is the same as on the Earth

Which of the following shows the arrangement of planets in relation to the sun, from the nearest to farthest?

Mars, Mercury, Venus, Earth

Mars, Earth, Venus, Mercury

Mercury, Mars, Venus, Earth

Mercury, Venus, Earth, Mars

During an earthquake, the sea withdrew for several kilometres along the coast and returned as immense waves. What kind of waves were these?

Which of the following structures is responsible for the transfer of hereditary characteristics?

Which of the following word equations BEST represents the process of photosynthesis?

Carbon dioxide + Water Energy → Sucrose + Oxygen

Oxygen + Glucose → Carbon dioxide + Water + Energy

Alcohol + Oxygen → Carbon dioxide + Water + Energy

Carbon dioxide + Water Energy → Glucose + Oxygen

Which of the following processes is associated with the passage of digested food into the bloodstream?

Which of the following does NOT assist the plant in moving water from the roots to the leaves?

Which of the following processes eliminates the waste products of cell metabolism?

The heart is protected from damage by the

In the Caribbean, the energy used in the production of electricity is derived MAINLY from

Which of the following substances is the BEST conductor of electricity?

Which of the following would NOT protect an iron gate from rusting?

Windows made from iron will rust quickly by the seaside. This is because the air by the seaside has a high percentage of

Which of the following chemicals is commonly called milk of magnesia?

Which of the following household substances is/are acidic? I. Baking soda II. Antacid tablets III. Vinegar

Which chemical is BEST for removing nail polish?

Which of the statements listed below would BEST explain the fact that smokers generally have a shorter life-span than non-smokers?

People who smoke are usually addicted to alcohol.

Smokers are susceptible to many lung disorders.

Smoking is addictive.

Smoking causes a decrease in appetite.

Which of following formulae is used to calculate the mechanical advantage of a machine?

Mechanical advantage = $\frac{Load}{Effort}$

Mechanical Advantage = $\frac{Effort}{Load}$

Mechanical Advantage = Effort - Load

Mechanical Advantage = Effort x Load

Decayed organic matter is called

Adding common salt to water produces a liquid that is, when compared with water,

less in chemical reactivity

less in electrical conductivity

A farmer was advised to add white lime to his soil to improve his fruit yield. The soil was MOST likely

What is MOST likely to be the highest temperature (in °C) registered by the thermometer?

Which of the following should be con- sidered when choosing recreational activ- ity?

I. Age of the individual II. Climatic conditions III. Physical health of the individual

Which of the following is MOST likely to happen to a sunbather, with unprotected eyes, if he faces the sun for a long time?

Change in colour of the iris

Damage to the retina

Drying out of the aqueous humour

Parallel rays of light emerge as parallel rays after hitting a

The increased pressure encountered by divers at large depths below sea-level can affect the

Which of the labelled parts of the car is called the cochlea?

A ship will float HIGHEST in

The load transported by a truck is increased to above the maximum load capacity of the truck. Which of the following is MOST likely to occur?

I. The truck will overturn. II. The suspension of the truck will be damaged. III. The stability of the truck will be increased.

Which of the following is emitted from a volcano?

Which of the following is NOT characteristic of a cold front?

Slow fall in pressure

Decrease in temperature

The sequence of energy changes taking place when a battery is used to light a bulb is

chemical $\rightarrow$ heat $\rightarrow$ electrical $\rightarrow$ light

heat $\rightarrow$ chemical $\rightarrow$ electrical $\rightarrow$ light

electrical $\rightarrow$ heat $\rightarrow$ chemical $\rightarrow$ light

chemical $\rightarrow$ electrical $\rightarrow$ heat $\rightarrow$ light

In which of the following are curved reflectors NOT used?

CSEC Integrated Science Paper 1 May/June 1999 - Free CXC Past Paper with Answers

CSEC Integrated Science Paper 1 May/June 1999 Questions