Std 8th Science 17. Man Made Materials
17. Man Made Materials Question 1: Try to find it a. Plastic shows ............... property, hence it can be molded to any shape. b. Motor cars are coated with ................. c. Thermocoal melts at .............. ∘ C. d. ................ glass dissolves in water. Answer 1: Try to find it a. Plastic shows plasticity property, hence it can be molded to any shape. b. Motor cars are coated with Automotive paint. c. Thermocoal melts at more than 100 ∘ C. d. Alkali silicate glass dissolves in water. Question 2: Who is my partner ? 'A' column 'B' column a. Lead glass i. Plates b. Bakelite ii. Mattresses c. Thermocol iii. Electric bulb d. Optic glass iv. Electric switch e. Polypropylene v. Lens Answer 2: 'A' column 'B' co...