| Name | First Aired | Runtime | Image | |
|---|---|---|---|---|
| S01E01 | Understanding Bacteria |
January 1, 2007
|
||
| S01E02 | Understanding Electricity |
January 1, 1997
|
||
| S01E03 | Understanding Flight |
January 1, 1996
|
||
| S01E04 | Understanding Magnetism |
January 1, 1997
|
||
| S01E05 | Understanding Sex |
January 1, 1994
|
||
| S01E06 | Understanding Space Travel |
January 1, 1997
|
||
| S01E07 | Understanding The Universe |
January 1, 1996
|
||
| S01E08 | Understanding Time |
January 1, 2007
|
||
| S01E09 | Understanding Viruses |
November 25, 1994
|
||
| S01E10 | Understanding Gizmos and Widgets | |||
| S01E11 |
Understanding Caves
series finale
|
October 8, 2009
|
No artwork of this type.
No artwork of this type.
No artwork of this type.