Mar 1, 1972 - 21m
Per and Gösta experiments with air pressure.
Mar 8, 1972 - 21m
Per and Gösta are looking close on small things.
Mar 15, 1972 - 21m
Per and Gösta are making sounds.
Mar 22, 1972 - 21m
Per and Gösta are experimenting with light.
Mar 29, 1972 - 21m
Per and Gösta are experimenting with friction.
Apr 5, 1972 - 21m
Per and Gösta are experimenting with magnets
Apr 12, 1972 - 21m
Per and Gösta are experimenting with center of mass.
