1. Which two metals combine to make brass?
   Copper & Zinc.
2. Which gas has a smell of rotten eggs?
   Hydrogen Sulphide.
3. What is the SI unit of temperature?
   Degrees Kelvin.
4. How many chromosomes are there in a healthy human cell?
   Forty-six (23 Pairs).
5. What is the longest side of a right angled triangle named?
   The Hypotenuse.
6. What colour does acid turn litmus?
   Red.
7. In computing what does the acronym ISDN refer to?
   Integrated Services Digital Network.
8. What is an endoscope used to examine?
   The inside of a body.
9. What is measured using a cryometer?
   Very low temperatures.
10. Galena is an ore of which metal?
    Lead.
11. Which element has the symbol Au?
    Gold.
12. What did Sir Frank Whittle invent in 1930?
    Jet Engine.
13. Which is the heaviest of the inert gases?
    Radon.
14. What scale measures the hardness of minerals?
    Mohs Scale.
15. How many yards are there in a furlong?
    220.
16. What name is given to an angle of greater than 90 degrees?
    Obtuse.
17. In computing what is meany by RAM?
    Random Access Memory.
18. Who invented the pneumatic tyre?
    Dunlop.
19. What type of camera was invented by Edwin Land?
    Polaroid.
20. Of what is petrology the study?
    Rocks.