Chemistry

F D E Y O O P X O V S E C A C F M G E P D
V E G G L A I E U P A T Y S D A T G K B P
W D M J F V M O C E L A T U W F H Y N F E
M I J M T H W T A I Q N F L E P O N M I G
I X E R T R E J R S P O I F O Q U B E C K
Q O D C V Q T J B E H B K U F I X I I N X
G R I A D S A E O S O R G R R D H O P G Y
J D X R R N N X N A T A R D D A L D T V D
D Y O B P C O U D G O C D I D S I E F N J
R H N O V B B B I E S M F O M R D G B I N
X M O N M Y R D O S Y U H X X O V R I U D
W U M N G F A N X U N I D I X I E A M J M
M I N E Q T C C I O T C F D C I J D Q F U
L C O U W R M P D H H L K E P P U A H Q Q
W L B T I Y U J E N E A D L G R M B B B T
S A R R S H I S V E S C W O S D Q L O M B
N C A A N K D J T E I J T G B I O E R G F
W F C L J H O T R R S I R O K R V Q B I H
I L L R C Y S R R G W P R T G H L B M M A
O N C P E J R I H C K Q P P Y S P F Q A X
J R O K U X B V V X F C G B V N B I X Y G

Clues

  • Carbon dioxide, methane and water vapour are examples of what? (10, 5)
  • Glass is made by heating limestone with sand and what else? (6, 9)
  • I am a gas. I am a product of incomplete combustion, I am colourless, odourless, toxic and can reduce the oxygen carrying ability of red blood cells. What am I? (6, 8)
  • If water is added to calcium oxide, what is formed? (7, 9)
  • Marble, chalk and limestone are natural forms of what? (7, 9)
  • Most polymers persist in landfill sites because they are not... (13)
  • What gas did the earth's early atmosphere mainly contain? (6, 7)
  • What gas dissolves in rainwater to form acid rain? (6, 7)
  • What process released oxygen, forming our atmosphere today? (14)
  • What term is used to describe a process that does not add carbon to the atmosphere because amount released is equal to amount removed? (6, 7)

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