Chemistry

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

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 calcium carbonate is heated, carbon dioxide and what else are formed? (7, 5)
  • 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 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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