Fun science for preschoolers. Nina investigates how we swim and experimenters Nina and Olivia find out how swimmers use their arms and legs for different strokes. Show more
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Fun science for preschoolers. Nina investigates how we swim and experimenters Nina and Olivia find out how swimmers use their arms and legs for different strokes. Show more
The UK's most watched and most loved channel for the under-sixes, dedicated to delighting and surprising its pre-school audience.
