Everyday Science Examination 1973

Time allowed: 3 hours
Maximum marks: 100                                                                        

Note : i) Answer questions carrying a maximum of 100 marks.
II) Each question in Section A carries 20 marks. Each question in Section
B carries 15 marks.

Section A

1.   Describe the blood circulation system of the human body.
2.   What are the various sources of energy? Describe the working of a conventional or a nuclear power plant?
3.   What role the forests play in the economy of a country? Comment on the adequacy of forests in Pakistan.
4.   In what various ways are the water and oxygen important for a man?
5.   What steps have been taken to combat small-pox? Explain why some diseases are infectious and others not infectious.
6.   What scientific manpower do you think is necessary for a developing country?

Section B

1.   what is the significance of introducing generic names of medicines?
2.   What preventive measures should be taken against either cholera malaria?
3.   How does the sun make a rainbow?
4.    List the planets in the solar system in order of their distance from the sun.
5.    What causes the rusting of iron?
6.    What is the difference between: (i) pig iron, (ii) cast iron, (iii) wrought iron, and (iv) steel?
7.   Give the names of five largest countries of the world in order of their area.
8.   In which parts of the world are the following found: (i) Chamois, (ii) Elk, (iii), Llama, (iv) moose, and (v) reindeer.
9.   How can the bats fly in the dark?
10.   What is the use of having two eyes?
11.   Describe the distinguishing features of Insects.
12.   What causes a Satellite stay in its orbit around the earth?