Integrated Science — 2009

Plants are different from animals because they

Which of the following conditions is not required for a current to flow through an electric circuit?

Which of the following examples is a source of energy?

Heat is transferred from the bottom of water in a container to the top by

A mercury thermometer works on the principle that

In which of the positions Q , R , S , T in the diagram below will a body have the greatest potential energy?

A solar cell produces electrical energy from

In a third-class lever the

At which positions S , R , Q and P on the lever in the diagram below must a force be applied to lift the load most easily?

Which of the following machines works on the same principle as an inclined plane?

Power is defined as the

Which of the following food substances is not involved in respiration?

Which of the following organisms is at the beginning of a food chain?

The human male sex cell that takes part in reproduction is the

The removal of waste products from the cells of organisms is called

The central nervous system consists of the

Which of the following life processes is not performed by all living things?

All veins in the body carry blood that does not contain oxygen with the exception of the veins from the

The method of purification of water containing very little impurities is

Boiling and chlorination are used in water purification to

The chemical symbol C is the symbol for

A substance which is made up of the same kind of atoms is called

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

When elements combine to form a compound the

Which of the following organisms is likely to increase the oxygen content of the water in a pond?

Which of the following parasites is a plant?

The part of the soil that is most important for the growth of plants is

Which of the following diseases may be associated with water?

The mosquito and housefly are harmful in that they

Which of the following diseases affects the central nervous system?

Day and night occur because the earth

Bronze is an alloy of

Which of the following substances causes acid rain when released into the atmosphere?

Which of the following gases helps in rusting?

The force of attraction between molecules of different substances is called

A metal block has a mass of 0.1kg. Calculate its volume if the density is 1.0 kgm -3 .

The food manufactured by a plant is distributed to all parts of the plant through the

Some insects are able to walk on water because

Oxygen is made available to all cells of the human body by the

The force which pulls all objects towards the centre of the earth is the