12. Which grows up from the ground, a stalactite or a stalagmite?
Stalagmite.

13. In radiation wavelenght is measured, radio rays are the longest. What are the shortest?
Gamma rays.

14. If a cathode is a negative electrode, what is a positive electrode?
Anode.

15. Galena is an ore of which metal?
Lead.

16. Which scale of wind velocity was named after a 19th-century English admiral?
The Beaufort Scale.

17. Who built the first successful petrol-driven car?
Karl Benz.

18. What weapon was designed in 1866 by the British engineer Robert Whitehead?
Torpedo.

19. What unit of weight equals 100 kilograms?
Metric ton (tonne).

20. What metallic element shares its name with a famous London theatre?
Palladium.

21. What is the acronym for 'sound navigation and ranging'?
Sonar.

22. Who first stated the laws of gravitation and light and also constructed the first reflection telescope?
Isaac Newton.

23. What in the metric system is equivalent to a cubic decimeter and equals 1.76 English pint?
Litre.

24. How many pounds are there in a kilogram?
2.2

25. What are Astra, Eutelsat, Intelsat and Telecom?
Satellites which transmit, or have transmitted, satellite television channels.

26. Who was the British engineer who invented the ACV (air cushion vehicle) in 1955?
Sir Christopher Cockerell.

27. Of what is metrology the study?
Measurement.

28. Who became Humphry Davy's assistant in 1813?
Michael Faraday.

29. What is measured by a bolometer?
Radiant energy.

30. What is the name given to a quadrilateral which has all its sides equal, but no right angles?
Rhombus.

31. What device was invented in 1954 by C.H.Townes?
Laser.

32. What colour is formed by adding together yellow, cyan and magenta?
Black.

33. In the metric system, what word/prefix stands for one-millionth?
Micro.

34. One tablespoon is equal to how many tespoons?
3.

35. Hg is the chemical symbol for which element?
Mercury.

36. Which element is the best conductor of electricity?
Siver.

37. What is the only gem which is of animal origin?
Pearl.

38. From which country does Indian ink originate?
China.

39. Which star is the constellation Canis Major is also know as the Dog Star?
Sirius.

40. Of what is seismology the study?
Earthquakes.

41. Which French physicist gave his name to the SI unit of electric current?
Ampere.

42. Which famous motor car did Ferdinad Porsche design in 1937?
Volkswagen Beetle.

43. What colour is alabaster?
White.

44. What measurement is equal to the imperial measure of 3.3 feet?
Metre.

45. What alloy consists of a mixture of copper, tin and zinc?
Gun-metal.

46. What radioactive element has the symbol Pm?
Promethium.

47. What kind of weapon is a Bofors?
Ani-aircraft gun.

48. What is know as the Red Planet?
Mars.

49. What wind-powered device was first built in Persia around 500AD?
Windmill.

50. In the metric system, what word/prefix represents one-tenth?
Deci.

51. Which German physicist laid down the principles of quantum theory?
Max Planck.

52. In which science is Karl Fredrich Gauss one of the all-times great?
Mathematics.

53. How many dozen are there in a gross?
12.

54. Which variety of quartz is violet to purple in colour and is the birthstone for February?
Amethyst.

55. Of what was the Flemish geographe, Gerandus Metcator, an originator?
Maps.

56. Which astronomer discovered the planet Uranus?
Herschell.

57. Who invented the electric lamp?
Thomas Edison.

58. What element has the symbol Pb?
Lead.

59. What colour is formed by mixing green and red light?
Yellow.

60. After hydrogen, what is the second most abundant element in the universe?
Helium.