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Unit 1 | |
|
Charles Kao | | |
Galileo | | |
Scale of the length of
different things | | |
|
Unit 2 | |
|
Using filtration to purify water | | |
|
Unit 3 | |
|
Chinese white dolphin | | |
|
Unit 4 | |
|
Structural relationship between chromosomes and DNA | | |
Cell division | | |
|
Unit 5 | |
|
Sankey diagram | | |
Formation of crude oil | | |
|
Unit 6 | |
|
Why are gaps left between railway tracks? | | |
Why do we not get crushed by atmospheric pressure? | | |
|
Unit 7 | |
|
Gas exchange in air sacs | | |
|
Unit 9 | |
|
Formation and effect of acid rain | | |
|
Unit 9 | |
|
Effect of acid rain | | |
How the ear works | | |
|
Unit 12 | |
|
Vaccination | | |