Q.2. Write short note on the following Muslim scientists by giving their exact life span and contribution to the field of science:- (5 x 2 = 10)
(a) Jabar-bin-Hayan (b) Bu Ali Sina
Q.3. Differentiate between any FIVE of the following pairs:- (5 x 2 = 10)
(a) Typhoons and Tornadoes
(b) Microscope and Telescope
(c) Ultrasonics and Infrasonics
(d) Hard water and Heavy water
(e) Isotopes and Isomers
(f) Antibodies and Antibiotics
(g) Antigen and Vaccine
Q.4. (a) What is a galaxy? The Earth belongs to which galaxy? (1+1 = 2)
(b) Briefly describe what is big bang theory. (4)
(c) Do you think that Pluto is still ninth planet of our solar system? If yes, how and if not why? (1+3)
Q.5. (a) Basically how many forms of energy are there? Also name these. (1+1 =2)
(b) Enlist different types of energy. (4)
(c) Why are scientists trying to find alternate energy sources? (2)
(d) What is a renewable energy source? Quote three examples of renewable energy sources. (2)
Q.6. Is plastic a natural or an artificial polymer? Describe various types of plastics and their uses. (10)
Q.7. (a) What do the following abbreviations stand for:
(i) LAN (ii) HTTP (iii) HTML (iv) PDF (v) URL (1 x 5 = 5)
(b) Differentiate between natural and artificial satellites. For what purpose artificial satellites are used? (5)
Q.8. (a) What is the main function of: (1 x 5 = 5)
(i) Ribosome (ii) Mitochondria (iii) Lysosomes (iv) Chloroplasts
(v) Golgi apparatus
(b) Give habitats of following animals: (1 x 5 = 5)
(i) Rattle snake (ii) Ostrich (iii) Platypus (iv) Rhinoceros
(v) Chimpanzee.
Q.9. Write short notes on the following:- (2 x 5 = 10)
(a) Nucleic acids (b) Fertilizers (c) Semiconductors (d) Microwave oven (e) Internet
