Season 12 aired between 15 Jan 1985 and 17 Dec 1985, 20 episodes.
Episodes
E01
Edgerton and His Incredible Seeing Machines
15 Jan 1985
E02
Global Village
22 Jan 1985
E03
Conquest of the Parasites
29 Jan 1985
E04
In the Land of the Polar Bears
05 Feb 1985
E05
AIDS: Chapter One
12 Feb 1985
E06
The Shape of Things
19 Feb 1985
E07
Baby Talk
26 Feb 1985
E08
The Mathematical Mystery Tour
05 Mar 1985
E09
Child's Play: Prodigies and Possibilities
12 Mar 1985
E10
Monarch of the Mountains
19 Mar 1985
E11
The National Science Test II
08 Oct 1985
E12
Seeds of Tomorrow
15 Oct 1985
E13
What Einstein Never Knew
22 Oct 1985
E14
The Robot Revolution?
29 Oct 1985
E15
The Magic of Special Effects
05 Nov 1985
E16
Child Survival: The Silent Emergency
12 Nov 1985
E17
Tornado!
19 Nov 1985
E18
The Genetic Gamble
26 Nov 1985
E19
Animal Architects
03 Dec 1985
E20
The Plane that Changed the World
17 Dec 1985