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hi
to find source material for thinking science is nightmare, I'm just wondering is anyone using program "thinking science" if yes what do you use for the Lesson 5, "Roller Ball"?
Hi Jazz,
We do something similar, although not from the 'Thinking science" program. We use flexible plastic tubing from Bunnings, about 30mm or so in diameter with glass marbles- have used ball bearings as well. We have also used the clip together conduit- sorry I don't know the proper name- but it has a rectangular profile and is about 15mm wide- one half of this makes a pretty good track for a small marble or ball bearing.
Good luck with your sourcing!
Jodie