Episodes

TitleComments
Genome: [r4 Bd=19680117]

1: The sounds we hear by HARRY ARMSTRONG Junior Science series

Genome: [r4 Bd=19680117]

Unknown: Harry Armstrong

Genome: [r4 Bd=19680124]

2: Echoes by HARRY ARMSTRONG

Junior Science series

Genome: [r4 Bd=19680131]

3: Soft and loud noises by HARRY ARMSTRONG

Junior Science series

Genome: [r4 Bd=19680207]

4: High notes and low notes by HARRY ARMSTRONG

Junior Science series

Genome: [r4 Bd=19680214]

5: Hearing sound by HARRY ARMSTRONG tJunior Science sertes

Genome: [r4 Bd=19680214]
Genome: [r4 Bd=19680221]

5: Hearing sound by HARRY ARMSTRONG

Junior Science series