1. What are the main constituents of China Clay?

2. What are the effects of the deficiency of the following nutrients in the Human body?

(i) Iodine
(ii) Vitamin A
(iii) Vitamin B
(iv) Vitamin C
(v) Vitamin D

3. Define Ultrasonic Waves. What are some uses of Ultrasonic Waves?

4. Name the raw material used in manufactures of Plastic. What are the two well known types of Plastics? Give at least two important properties of Plastic?

5. What is common cause of Heart Attack?

6. In what units the following can be measured?

• Force
• Temperature
• Current
• Heat
• Pressure
• Radioactivity
• Atomic Energy

7. What parts of the human body secrets the following enzymes? Give one important function of each.

• Amylase
• Pepsin
• Trypsin
• Lipase
• Sucrase

8. Mention five applications of Laser.

9. Name the field of the following Scientists.

• Jabir bin Hayyan
• Ibnal Haitham
• Abu Rehan al Beruni
• Ibn e Sina
• Al Khawarzimi
• Abu Bakar Zakariyya Razi
• Ibn e Baitar
• Abu Qasim Zahravi

10. What do you mean by the term RADAR? Explain its working.

11. Name the six important elements which forums 99% of the human body.

12. Define the following,

1. Chain Reaction
2. Fission
3. Fusion

13. Name the important sources of energy used in the industries in Pakistan. What other alternative sources of energy can be used in the industry?

14. What are planets? Name the known planets.

15. Given below is the list of scientists works (List A) and (List B). Match the two.

A

Solar system
Current Electricity
Telephone
Gramophone
Atomic Number
Structure of DNA
Mercury Thermometer
Dynamite
Cells
Television

B

Thomas Edison
Alfred Nobel
Copernicus
Mosley
Fahrenheit
Volta
Watson and Clark
Graham Bell
John Baird
Robert Hooke

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