Chemistry

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

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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