- Muhammad Bin Zakria Razi
- Ibne Al Hasham
- Jabir Bin Hayyan
- Ibne Rushd
- Watson and Clark
- X Ray
- Circulation of blood
- Mercury thermometer
(b) What is the blood pressure in man under normal condition?
(c) What is Reflex Action?
(d) What is the difference between a virus and a bacterium?
(e) Name any viral disease special to children.
4. (a) What do you understand by immunity?
(b) What is the principle of immunization?
(c) Why is matching of blood groups done before giving blood transfusion?
(d) What is the principle of pasteurization?
5. Name the disease which are caused by the deficiency of the following.
- Vitamin A(C2H29OH)
- Vitamin B1
- Vitamin C
- Vitamin K
(a) A process of digestion begins in ______________ .
(b) Sometimes when white blood corpuscles greatly increase in number, they cause a disease called ______________.
(c) The principle of wireless telegraphy was discovered by ______________.
(d) Earth is one of the ______________ planets which revolves round the sun.
(e) The planet nearest to the sun is ______________.
7. Define the following.
(a) Nuclear Fission
(b) Cast Iron
(d) German Silver
(e) Washing Soda (Na2CO3)
(f) Caustic Soda (NaOH)
8. (a) What is the function of root tubers?
(b) What is the main difference between an animal and plant cell?
(c) Why are the leaves of pine tree needle shaped?
(d) How is the age of tree determined?
9. (a) Describe the process of photosynthesis in plants.
(b) Name the positively phototropic and negatively phototropic parts of a plant.
10. (a) How a rainbow is produced?
(b) What are the component colours of rainbow?
(c) What do you know about the Milky Way?
(d) Why do you hear thunder after and see flash of light first?
(e) How an earthquake is caused?
11. Make five matching pairs from list A and B.
13. Where do the following animals occur?
- Rattles snake
- Snow leopard
14. Distinguish between the following (Answer any three):
(a) Optical telescope and radio telescope
(b) Weather and climate
(c) Isotherm and Isobar
(d) Small pox and measles
(e) Erosion and corrosion
(f) Epidemic and endemic
(g) Cost iron and wrought iron.
15. Define five of the following:
(a) Food Chain