These are a few scans from a 'Science I CAN READ' Book that I found a couple of years ago in a second hand book shop. It has some really nice minimal line outline drawings and a great restrained use of colour by the illustrator Talivaldis Stubis.
It was printed in 1963.
I like the plot suggestion they come up with for your magnetic puppet show:
'Make the man chase the dog into the house,
then make the dog chase the man at the end of the show.
At the end of the show, let them be friends'
I also like how the two children in the background are getting wildly over excited by the story too!