Revision Exercise Answers Part I

1 mixture
2 nitrogen
3 oxygen
4 carbon dioxide
5 noble gases
6 unreactive
7 glowing splint
8 hydrogencarbonate indicator
9 lime water
10 cobalt chloride paper
11 relight
12 unbreathed air
13 burning
14 react
15 fuel
16 respiration
17 photosynthesis
18 starch
19 chlorophyll
20 by-product
21 iodine test
22 destarch
23 soda lime
24 gaseous exchange
25 lung
26 trachea
27 bronchus / bronchi
28 rib / ribs
29 intercostal muscle
30 diaphragm
31 air sac
32 blood vessel